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52203557 = 79776883
BaseRepresentation
bin1100011100100…
…1000000100101
310122020012211002
43013021000211
5101331003212
65102523045
71202502650
oct307110045
9118205732
1052203557
112751633a
1215596485
13aa7a3a3
146d0c897
1548b2ac2
hex31c9025

52203557 has 8 divisors (see below), whose sum is σ = 60277056. Its totient is φ = 44284032.

The previous prime is 52203553. The next prime is 52203587. The reversal of 52203557 is 75530225.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52203557 - 22 = 52203553 is a prime.

It is a super-2 number, since 2×522035572 = 5450422726904498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52203551) 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, 37763 + ... + 39120.

It is an arithmetic number, because the mean of its divisors is an integer number (7534632).

Almost surely, 252203557 is an apocalyptic number.

It is an amenable number.

52203557 is a deficient number, since it is larger than the sum of its proper divisors (8073499).

52203557 is an equidigital number, since it uses as much as digits as its factorization.

52203557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76987.

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 52203557 is about 7225.2029037253. The cubic root of 52203557 is about 373.7375192232.

The spelling of 52203557 in words is "fifty-two million, two hundred three thousand, five hundred fifty-seven".

Divisors: 1 7 97 679 76883 538181 7457651 52203557