52501525 has 48 divisors (see below), whose sum is σ = 74245248. Its totient is φ = 36608000.

The previous prime is 52501487. The next prime is 52501529. The reversal of 52501525 is 52510525.

It is a happy number.

It is not a de Polignac number, because 52501525 - 2²¹ = 50404373 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52501525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52501529) 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, 400710 + ... + 400840.

It is an arithmetic number, because the mean of its divisors is an integer number (1546776).

Almost surely, 2^52501525 is an apocalyptic number.

It is an amenable number.

52501525 is a deficient number, since it is larger than the sum of its proper divisors (21743723).

52501525 is a wasteful number, since it uses less digits than its factorization.

52501525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 52501525 is about 7245.7936073283. The cubic root of 52501525 is about 374.4472448910.

The spelling of 52501525 in words is "fifty-two million, five hundred one thousand, five hundred twenty-five".