53507519 has 12 divisors (see below), whose sum is σ = 59556168. Its totient is φ = 47787120.

The previous prime is 53507507. The next prime is 53507533. The reversal of 53507519 is 91570535.

It is not a de Polignac number, because 53507519 - 2²⁴ = 36730303 is a prime.

It is a super-2 number, since 2×53507519² = 5726109179070722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53507579) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10352 + ... + 14634.

It is an arithmetic number, because the mean of its divisors is an integer number (4963014).

Almost surely, 2^53507519 is an apocalyptic number.

53507519 is a deficient number, since it is larger than the sum of its proper divisors (6048649).

53507519 is a wasteful number, since it uses less digits than its factorization.

53507519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4358 (or 4327 counting only the distinct ones).

The product of its (nonzero) digits is 23625, while the sum is 35.

The square root of 53507519 is about 7314.8833893645. The cubic root of 53507519 is about 376.8237537108.

The spelling of 53507519 in words is "fifty-three million, five hundred seven thousand, five hundred nineteen".