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52223552 = 261967641
BaseRepresentation
bin1100011100110…
…1111001000000
310122021020020122
43013031321000
5101332123202
65103155412
71202615153
oct307157100
9118236218
1052223552
112752a367
12155a5b68
13aa86514
146d15c9a
1548b89a2
hex31cde40

52223552 has 56 divisors (see below), whose sum is σ = 110886240. Its totient is φ = 24330240.

The previous prime is 52223537. The next prime is 52223557. The reversal of 52223552 is 25532225.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (52223557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81152 + ... + 81792.

Almost surely, 252223552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52223552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55443120).

52223552 is an abundant number, since it is smaller than the sum of its proper divisors (58662688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52223552 is a wasteful number, since it uses less digits than its factorization.

52223552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739 (or 729 counting only the distinct ones).

The product of its digits is 6000, while the sum is 26.

The square root of 52223552 is about 7226.5864694197. The cubic root of 52223552 is about 373.7852294320.

Adding to 52223552 its reverse (25532225), we get a palindrome (77755777).

The spelling of 52223552 in words is "fifty-two million, two hundred twenty-three thousand, five hundred fifty-two".

Divisors: 1 2 4 8 16 19 32 38 64 67 76 134 152 268 304 536 608 641 1072 1216 1273 1282 2144 2546 2564 4288 5092 5128 10184 10256 12179 20368 20512 24358 40736 41024 42947 48716 81472 85894 97432 171788 194864 343576 389728 687152 779456 815993 1374304 1631986 2748608 3263972 6527944 13055888 26111776 52223552