53990973 has 12 divisors (see below), whose sum is σ = 79889628. Its totient is φ = 35115840.

The previous prime is 53990971. The next prime is 53990977. The reversal of 53990973 is 37909935.

It can be written as a sum of positive squares in 2 ways, for example, as 28164249 + 25826724 = 5307^2 + 5082^2 .

It is not a de Polignac number, because 53990973 - 2¹ = 53990971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53990971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72790 + ... + 73527.

It is an arithmetic number, because the mean of its divisors is an integer number (6657469).

Almost surely, 2^53990973 is an apocalyptic number.

It is an amenable number.

53990973 is a deficient number, since it is larger than the sum of its proper divisors (25898655).

53990973 is a wasteful number, since it uses less digits than its factorization.

53990973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146364 (or 146361 counting only the distinct ones).

The product of its (nonzero) digits is 229635, while the sum is 45.

The square root of 53990973 is about 7347.8549931255. The cubic root of 53990973 is about 377.9552521145.

The spelling of 53990973 in words is "fifty-three million, nine hundred ninety thousand, nine hundred seventy-three".