52501212 has 36 divisors (see below), whose sum is σ = 132972840. Its totient is φ = 17465952.

The previous prime is 52501201. The next prime is 52501243. The reversal of 52501212 is 21210525.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×52501212² = 5512754522937888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22618 + ... + 24830.

It is an arithmetic number, because the mean of its divisors is an integer number (3693690).

Almost surely, 2^52501212 is an apocalyptic number.

It is an amenable number.

52501212 is an abundant number, since it is smaller than the sum of its proper divisors (80471628).

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

52501212 is a wasteful number, since it uses less digits than its factorization.

52501212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2882 (or 2877 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 52501212 is about 7245.7720085578. The cubic root of 52501212 is about 374.4465007716.

Adding to 52501212 its reverse (21210525), we get a palindrome (73711737).

It can be divided in two parts, 52 and 501212, that added together give a square (501264 = 708²).

The spelling of 52501212 in words is "fifty-two million, five hundred one thousand, two hundred twelve".