56278037 has 2 divisors, whose sum is σ = 56278038. Its totient is φ = 56278036.

The previous prime is 56278021. The next prime is 56278039. The reversal of 56278037 is 73087265.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42432196 + 13845841 = 6514^2 + 3721^2 .

It is a cyclic number.

It is not a de Polignac number, because 56278037 - 2⁴ = 56278021 is a prime.

Together with 56278039, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56278039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28139018 + 28139019.

It is an arithmetic number, because the mean of its divisors is an integer number (28139019).

Almost surely, 2^56278037 is an apocalyptic number.

It is an amenable number.

56278037 is a deficient number, since it is larger than the sum of its proper divisors (1).

56278037 is an equidigital number, since it uses as much as digits as its factorization.

56278037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 56278037 is about 7501.8689004807. The cubic root of 56278037 is about 383.2183649343.

The spelling of 56278037 in words is "fifty-six million, two hundred seventy-eight thousand, thirty-seven".