53986507 has 4 divisors (see below), whose sum is σ = 54002896. Its totient is φ = 53970120.

The previous prime is 53986481. The next prime is 53986547. The reversal of 53986507 is 70568935.

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 53986507 - 2⁷ = 53986379 is a prime.

It is a super-2 number, since 2×53986507² = 5829085876122098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53986547) 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, 1344 + ... + 10477.

It is an arithmetic number, because the mean of its divisors is an integer number (13500724).

Almost surely, 2^53986507 is an apocalyptic number.

53986507 is a deficient number, since it is larger than the sum of its proper divisors (16389).

53986507 is a wasteful number, since it uses less digits than its factorization.

53986507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16388.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 53986507 is about 7347.5510886281. The cubic root of 53986507 is about 377.9448306520.

The spelling of 53986507 in words is "fifty-three million, nine hundred eighty-six thousand, five hundred seven".