52537405 has 16 divisors (see below), whose sum is σ = 67912704. Its totient is φ = 38903040.

The previous prime is 52537379. The next prime is 52537411. The reversal of 52537405 is 50473525.

It is not a de Polignac number, because 52537405 - 2²¹ = 50440253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3804 + ... + 10933.

It is an arithmetic number, because the mean of its divisors is an integer number (4244544).

Almost surely, 2^52537405 is an apocalyptic number.

It is an amenable number.

52537405 is a deficient number, since it is larger than the sum of its proper divisors (15375299).

52537405 is a wasteful number, since it uses less digits than its factorization.

52537405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14796.

The product of its (nonzero) digits is 21000, while the sum is 31.

The square root of 52537405 is about 7248.2691037240. The cubic root of 52537405 is about 374.5325256376.

The spelling of 52537405 in words is "fifty-two million, five hundred thirty-seven thousand, four hundred five".