55704031 has 2 divisors, whose sum is σ = 55704032. Its totient is φ = 55704030.

The previous prime is 55704023. The next prime is 55704043. The reversal of 55704031 is 13040755.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55704031 - 2³ = 55704023 is a prime.

It is a super-2 number, since 2×55704031² = 6205878139297922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55703987 and 55704005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55704931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27852015 + 27852016.

It is an arithmetic number, because the mean of its divisors is an integer number (27852016).

Almost surely, 2^55704031 is an apocalyptic number.

55704031 is a deficient number, since it is larger than the sum of its proper divisors (1).

55704031 is an equidigital number, since it uses as much as digits as its factorization.

55704031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 55704031 is about 7463.5133147868. The cubic root of 55704031 is about 381.9110357230.

Adding to 55704031 its reverse (13040755), we get a palindrome (68744786).

The spelling of 55704031 in words is "fifty-five million, seven hundred four thousand, thirty-one".