56378039 has 2 divisors, whose sum is σ = 56378040. Its totient is φ = 56378038.

The previous prime is 56377987. The next prime is 56378053. The reversal of 56378039 is 93087365.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56378039 - 2²⁴ = 39600823 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 56377987 and 56378005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56378089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28189019 + 28189020.

It is an arithmetic number, because the mean of its divisors is an integer number (28189020).

Almost surely, 2^56378039 is an apocalyptic number.

56378039 is a deficient number, since it is larger than the sum of its proper divisors (1).

56378039 is an equidigital number, since it uses as much as digits as its factorization.

56378039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 56378039 is about 7508.5310813767. The cubic root of 56378039 is about 383.4452143918.

The spelling of 56378039 in words is "fifty-six million, three hundred seventy-eight thousand, thirty-nine".