53525513 has 4 divisors (see below), whose sum is σ = 53544960. Its totient is φ = 53506068.

The previous prime is 53525509. The next prime is 53525557. The reversal of 53525513 is 31552535.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53525513 - 2² = 53525509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53525713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4745 + ... + 11382.

It is an arithmetic number, because the mean of its divisors is an integer number (13386240).

Almost surely, 2^53525513 is an apocalyptic number.

It is an amenable number.

53525513 is a deficient number, since it is larger than the sum of its proper divisors (19447).

53525513 is a wasteful number, since it uses less digits than its factorization.

53525513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19446.

The product of its digits is 11250, while the sum is 29.

The square root of 53525513 is about 7316.1132440661. The cubic root of 53525513 is about 376.8659895611.

It can be divided in two parts, 535255 and 13, that multiplied together give a triangular number (6958315 = T₃₇₃₀).

The spelling of 53525513 in words is "fifty-three million, five hundred twenty-five thousand, five hundred thirteen".