52157524 has 12 divisors (see below), whose sum is σ = 91351764. Its totient is φ = 26057024.

The previous prime is 52157507. The next prime is 52157533. The reversal of 52157524 is 42575125.

It can be written as a sum of positive squares in 2 ways, for example, as 28944400 + 23213124 = 5380^2 + 4818^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 744 + ... + 10240.

It is an arithmetic number, because the mean of its divisors is an integer number (7612647).

Almost surely, 2^52157524 is an apocalyptic number.

It is an amenable number.

52157524 is a deficient number, since it is larger than the sum of its proper divisors (39194240).

52157524 is a wasteful number, since it uses less digits than its factorization.

52157524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10874 (or 10872 counting only the distinct ones).

The product of its digits is 14000, while the sum is 31.

The square root of 52157524 is about 7222.0166158768. The cubic root of 52157524 is about 373.6276332334.

The spelling of 52157524 in words is "fifty-two million, one hundred fifty-seven thousand, five hundred twenty-four".