52507545 has 32 divisors (see below), whose sum is σ = 91497600. Its totient is φ = 25611264.

The previous prime is 52507531. The next prime is 52507547. The reversal of 52507545 is 54570525.

It is not a de Polignac number, because 52507545 - 2⁴ = 52507529 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52507547) 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, 5089 + ... + 11441.

It is an arithmetic number, because the mean of its divisors is an integer number (2859300).

Almost surely, 2^52507545 is an apocalyptic number.

It is an amenable number.

52507545 is a deficient number, since it is larger than the sum of its proper divisors (38990055).

52507545 is a wasteful number, since it uses less digits than its factorization.

52507545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6409.

The product of its (nonzero) digits is 35000, while the sum is 33.

The square root of 52507545 is about 7246.2090088542. The cubic root of 52507545 is about 374.4615561341.

The spelling of 52507545 in words is "fifty-two million, five hundred seven thousand, five hundred forty-five".