52661572 has 6 divisors (see below), whose sum is σ = 92157758. Its totient is φ = 26330784.

The previous prime is 52661561. The next prime is 52661579. The reversal of 52661572 is 27516625.

It can be written as a sum of positive squares in only one way, i.e., 49224256 + 3437316 = 7016^2 + 1854^2 .

It is a super-2 number, since 2×52661572² = 5546482331022368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52661579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6582693 + ... + 6582700.

Almost surely, 2^52661572 is an apocalyptic number.

It is an amenable number.

52661572 is a deficient number, since it is larger than the sum of its proper divisors (39496186).

52661572 is a wasteful number, since it uses less digits than its factorization.

52661572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13165397 (or 13165395 counting only the distinct ones).

The product of its digits is 25200, while the sum is 34.

The square root of 52661572 is about 7256.8293351849. The cubic root of 52661572 is about 374.8273504505.

The spelling of 52661572 in words is "fifty-two million, six hundred sixty-one thousand, five hundred seventy-two".