53140087 has 16 divisors (see below), whose sum is σ = 71350272. Its totient is φ = 38221920.

The previous prime is 53140063. The next prime is 53140091. The reversal of 53140087 is 78004135.

It is a de Polignac number, because none of the positive numbers 2^k-53140087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53140027) 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, 25543 + ... + 27544.

It is an arithmetic number, because the mean of its divisors is an integer number (4459392).

Almost surely, 2^53140087 is an apocalyptic number.

53140087 is a deficient number, since it is larger than the sum of its proper divisors (18210185).

53140087 is a wasteful number, since it uses less digits than its factorization.

53140087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53118.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 53140087 is about 7289.7247547490. The cubic root of 53140087 is about 375.9592319425.

The spelling of 53140087 in words is "fifty-three million, one hundred forty thousand, eighty-seven".