53265651587 has 4 divisors (see below), whose sum is σ = 53544529536. Its totient is φ = 52986773640.

The previous prime is 53265651581. The next prime is 53265651617. The reversal of 53265651587 is 78515656235.

53265651587 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53265651587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53265651581) 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, 139438688 + ... + 139439069.

It is an arithmetic number, because the mean of its divisors is an integer number (13386132384).

Almost surely, 2^53265651587 is an apocalyptic number.

53265651587 is a deficient number, since it is larger than the sum of its proper divisors (278877949).

53265651587 is a wasteful number, since it uses less digits than its factorization.

53265651587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278877948.

The product of its digits is 7560000, while the sum is 53.

The spelling of 53265651587 in words is "fifty-three billion, two hundred sixty-five million, six hundred fifty-one thousand, five hundred eighty-seven".