53974809 has 32 divisors (see below), whose sum is σ = 91760640. Its totient is φ = 30716496.

The previous prime is 53974807. The next prime is 53974831. The reversal of 53974809 is 90847935.

It is not a de Polignac number, because 53974809 - 2¹ = 53974807 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53974807) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65172 + ... + 65994.

It is an arithmetic number, because the mean of its divisors is an integer number (2867520).

Almost surely, 2^53974809 is an apocalyptic number.

It is an amenable number.

53974809 is a deficient number, since it is larger than the sum of its proper divisors (37785831).

53974809 is a wasteful number, since it uses less digits than its factorization.

53974809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186 (or 1180 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 53974809 is about 7346.7549979566. The cubic root of 53974809 is about 377.9175305096.

The spelling of 53974809 in words is "fifty-three million, nine hundred seventy-four thousand, eight hundred nine".