52215044 has 12 divisors (see below), whose sum is σ = 104430144. Its totient is φ = 22377864.

The previous prime is 52215019. The next prime is 52215049. The reversal of 52215044 is 44051225.

It is a happy number.

52215044 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (52215049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 932384 + ... + 932439.

It is an arithmetic number, because the mean of its divisors is an integer number (8702512).

Almost surely, 2^52215044 is an apocalyptic number.

It is an amenable number.

52215044 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

52215044 is a wasteful number, since it uses less digits than its factorization.

52215044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1864834 (or 1864832 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 52215044 is about 7225.9977857733. The cubic root of 52215044 is about 373.7649299226.

Adding to 52215044 its reverse (44051225), we get a palindrome (96266269).

The spelling of 52215044 in words is "fifty-two million, two hundred fifteen thousand, forty-four".