53977431 has 8 divisors (see below), whose sum is σ = 76203504. Its totient is φ = 33868160.

The previous prime is 53977421. The next prime is 53977447. The reversal of 53977431 is 13477935.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53977431 - 2¹⁰ = 53976407 is a prime.

It is a super-2 number, since 2×53977431² = 5827126114719522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53977431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53977421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 529140 + ... + 529241.

It is an arithmetic number, because the mean of its divisors is an integer number (9525438).

Almost surely, 2^53977431 is an apocalyptic number.

53977431 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

53977431 is a deficient number, since it is larger than the sum of its proper divisors (22226073).

53977431 is a wasteful number, since it uses less digits than its factorization.

53977431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058401.

The product of its digits is 79380, while the sum is 39.

The square root of 53977431 is about 7346.9334419198. The cubic root of 53977431 is about 377.9236499304.

The spelling of 53977431 in words is "fifty-three million, nine hundred seventy-seven thousand, four hundred thirty-one".