52257724 has 18 divisors (see below), whose sum is σ = 93001272. Its totient is φ = 25693200.

The previous prime is 52257721. The next prime is 52257731. The reversal of 52257724 is 42775225.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 52257724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52257721) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13129 + ... + 16639.

Almost surely, 2^52257724 is an apocalyptic number.

It is an amenable number.

52257724 is a deficient number, since it is larger than the sum of its proper divisors (40743548).

52257724 is a wasteful number, since it uses less digits than its factorization.

52257724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3637 (or 3574 counting only the distinct ones).

The product of its digits is 39200, while the sum is 34.

The square root of 52257724 is about 7228.9504079085. The cubic root of 52257724 is about 373.8667392963.

The spelling of 52257724 in words is "fifty-two million, two hundred fifty-seven thousand, seven hundred twenty-four".