53404931 has 2 divisors, whose sum is σ = 53404932. Its totient is φ = 53404930.

The previous prime is 53404913. The next prime is 53404933. The reversal of 53404931 is 13940435.

53404931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (53404913) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53404931 is a prime.

It is a super-2 number, since 2×53404931² = 5704173310229522, which contains 22 as substring.

Together with 53404933, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 53404894 and 53404903.

It is not a weakly prime, because it can be changed into another prime (53404933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26702465 + 26702466.

It is an arithmetic number, because the mean of its divisors is an integer number (26702466).

Almost surely, 2^53404931 is an apocalyptic number.

53404931 is a deficient number, since it is larger than the sum of its proper divisors (1).

53404931 is an equidigital number, since it uses as much as digits as its factorization.

53404931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 53404931 is about 7307.8677464771. The cubic root of 53404931 is about 376.5827761939.

The spelling of 53404931 in words is "fifty-three million, four hundred four thousand, nine hundred thirty-one".