52505245 has 16 divisors (see below), whose sum is σ = 69137712. Its totient is φ = 38039040.

The previous prime is 52505209. The next prime is 52505249. The reversal of 52505245 is 54250525.

It can be written as a sum of positive squares in 8 ways, for example, as 729 + 52504516 = 27^2 + 7246^2 .

It is not a de Polignac number, because 52505245 - 2¹⁵ = 52472477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52505249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4176 + ... + 11065.

It is an arithmetic number, because the mean of its divisors is an integer number (4321107).

Almost surely, 2^52505245 is an apocalyptic number.

It is an amenable number.

52505245 is a deficient number, since it is larger than the sum of its proper divisors (16632467).

52505245 is a wasteful number, since it uses less digits than its factorization.

52505245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15312.

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 52505245 is about 7246.0503034412. The cubic root of 52505245 is about 374.4560885126.

The spelling of 52505245 in words is "fifty-two million, five hundred five thousand, two hundred forty-five".