52356645 has 32 divisors (see below), whose sum is σ = 101543040. Its totient is φ = 25384320.

The previous prime is 52356643. The next prime is 52356691. The reversal of 52356645 is 54665325.

It is a happy number.

52356645 is a `hidden beast` number, since 5 + 2 + 3 + 5 + 6 + 645 = 666.

It is not a de Polignac number, because 52356645 - 2¹ = 52356643 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52356641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16144 + ... + 19113.

It is an arithmetic number, because the mean of its divisors is an integer number (3173220).

Almost surely, 2^52356645 is an apocalyptic number.

52356645 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

52356645 is a deficient number, since it is larger than the sum of its proper divisors (49186395).

52356645 is a wasteful number, since it uses less digits than its factorization.

52356645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35282 (or 35276 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

The square root of 52356645 is about 7235.7891760333. The cubic root of 52356645 is about 374.1024936667.

The spelling of 52356645 in words is "fifty-two million, three hundred fifty-six thousand, six hundred forty-five".