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52572361 = 103950599
BaseRepresentation
bin1100100010001…
…1000011001001
310122220221201111
43020203003021
5101424303421
65114450321
71205600122
oct310430311
9118827644
1052572361
1127748436
12157339a1
13ab7920a
146da7049
154936ee1
hex32230c9

52572361 has 4 divisors (see below), whose sum is σ = 52624000. Its totient is φ = 52520724.

The previous prime is 52572353. The next prime is 52572371. The reversal of 52572361 is 16327525.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52572361 - 23 = 52572353 is a prime.

It is a super-2 number, since 2×525723612 = 5527706282228642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52572341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24261 + ... + 26338.

It is an arithmetic number, because the mean of its divisors is an integer number (13156000).

Almost surely, 252572361 is an apocalyptic number.

It is an amenable number.

52572361 is a deficient number, since it is larger than the sum of its proper divisors (51639).

52572361 is a wasteful number, since it uses less digits than its factorization.

52572361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51638.

The product of its digits is 12600, while the sum is 31.

The square root of 52572361 is about 7250.6800370724. The cubic root of 52572361 is about 374.6155728582.

Adding to 52572361 its reverse (16327525), we get a palindrome (68899886).

The spelling of 52572361 in words is "fifty-two million, five hundred seventy-two thousand, three hundred sixty-one".

Divisors: 1 1039 50599 52572361