56172079 has 2 divisors, whose sum is σ = 56172080. Its totient is φ = 56172078.

The previous prime is 56172023. The next prime is 56172089. The reversal of 56172079 is 97027165.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56172079 - 2⁹ = 56171567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56172019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28086039 + 28086040.

It is an arithmetic number, because the mean of its divisors is an integer number (28086040).

Almost surely, 2^56172079 is an apocalyptic number.

56172079 is a deficient number, since it is larger than the sum of its proper divisors (1).

56172079 is an equidigital number, since it uses as much as digits as its factorization.

56172079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 56172079 is about 7494.8034664026. The cubic root of 56172079 is about 382.9777111876.

The spelling of 56172079 in words is "fifty-six million, one hundred seventy-two thousand, seventy-nine".