52621052 has 48 divisors (see below), whose sum is σ = 107557632. Its totient is φ = 22260480.

The previous prime is 52621039. The next prime is 52621057. The reversal of 52621052 is 25012625.

It is a super-2 number, since 2×52621052² = 5537950227173408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52621057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76703 + ... + 77385.

It is an arithmetic number, because the mean of its divisors is an integer number (2240784).

Almost surely, 2^52621052 is an apocalyptic number.

It is an amenable number.

52621052 is an abundant number, since it is smaller than the sum of its proper divisors (54936580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52621052 is a wasteful number, since it uses less digits than its factorization.

52621052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818 (or 816 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 52621052 is about 7254.0369450396. The cubic root of 52621052 is about 374.7311898742.

Adding to 52621052 its reverse (25012625), we get a palindrome (77633677).

The spelling of 52621052 in words is "fifty-two million, six hundred twenty-one thousand, fifty-two".