52605813 has 48 divisors (see below), whose sum is σ = 82452480. Its totient is φ = 29719872.

The previous prime is 52605811. The next prime is 52605827. The reversal of 52605813 is 31850625.

It is not a de Polignac number, because 52605813 - 2¹ = 52605811 is a prime.

It is a super-2 number, since 2×52605813² = 5534743122781938, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52605811) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 414156 + ... + 414282.

It is an arithmetic number, because the mean of its divisors is an integer number (1717760).

Almost surely, 2^52605813 is an apocalyptic number.

It is an amenable number.

52605813 is a deficient number, since it is larger than the sum of its proper divisors (29846667).

52605813 is a wasteful number, since it uses less digits than its factorization.

52605813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 52605813 is about 7252.9864883371. The cubic root of 52605813 is about 374.6950124653.

The spelling of 52605813 in words is "fifty-two million, six hundred five thousand, eight hundred thirteen".