56671477 has 2 divisors, whose sum is σ = 56671478. Its totient is φ = 56671476.

The previous prime is 56671453. The next prime is 56671493. The reversal of 56671477 is 77417665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52403121 + 4268356 = 7239^2 + 2066^2 .

It is a cyclic number.

It is not a de Polignac number, because 56671477 - 2¹⁵ = 56638709 is a prime.

It is equal to p_3375979 and since 56671477 and 3375979 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56671427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28335738 + 28335739.

It is an arithmetic number, because the mean of its divisors is an integer number (28335739).

Almost surely, 2^56671477 is an apocalyptic number.

It is an amenable number.

56671477 is a deficient number, since it is larger than the sum of its proper divisors (1).

56671477 is an equidigital number, since it uses as much as digits as its factorization.

56671477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 246960, while the sum is 43.

The square root of 56671477 is about 7528.0460280208. The cubic root of 56671477 is about 384.1093190094.

The spelling of 56671477 in words is "fifty-six million, six hundred seventy-one thousand, four hundred seventy-seven".