53406986 has 16 divisors (see below), whose sum is σ = 87048960. Its totient is φ = 24481440.

The previous prime is 53406961. The next prime is 53407007. The reversal of 53406986 is 68960435.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21491 + ... + 23846.

It is an arithmetic number, because the mean of its divisors is an integer number (5440560).

Almost surely, 2^53406986 is an apocalyptic number.

53406986 is a deficient number, since it is larger than the sum of its proper divisors (33641974).

53406986 is a wasteful number, since it uses less digits than its factorization.

53406986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45389.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 53406986 is about 7308.0083470122. The cubic root of 53406986 is about 376.5876063826.

The spelling of 53406986 in words is "fifty-three million, four hundred six thousand, nine hundred eighty-six".