52640626 has 16 divisors (see below), whose sum is σ = 83073600. Its totient is φ = 24980368.

The previous prime is 52640587. The next prime is 52640641. The reversal of 52640626 is 62604625.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4270 + ... + 11113.

It is an arithmetic number, because the mean of its divisors is an integer number (5192100).

Almost surely, 2^52640626 is an apocalyptic number.

52640626 is a deficient number, since it is larger than the sum of its proper divisors (30432974).

52640626 is a wasteful number, since it uses less digits than its factorization.

52640626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15473.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 52640626 is about 7255.3859993800. The cubic root of 52640626 is about 374.7776483335. Note that the first 3 decimals are identical.

The spelling of 52640626 in words is "fifty-two million, six hundred forty thousand, six hundred twenty-six".