53507087 has 4 divisors (see below), whose sum is σ = 53710800. Its totient is φ = 53303376.

The previous prime is 53506991. The next prime is 53507099. The reversal of 53507087 is 78070535.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53507087 - 2¹⁸ = 53244943 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 (53507887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101462 + ... + 101987.

It is an arithmetic number, because the mean of its divisors is an integer number (13427700).

Almost surely, 2^53507087 is an apocalyptic number.

53507087 is a deficient number, since it is larger than the sum of its proper divisors (203713).

53507087 is a wasteful number, since it uses less digits than its factorization.

53507087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203712.

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 53507087 is about 7314.8538604678. The cubic root of 53507087 is about 376.8227395960.

The spelling of 53507087 in words is "fifty-three million, five hundred seven thousand, eighty-seven".