56672401 has 2 divisors, whose sum is σ = 56672402. Its totient is φ = 56672400.

The previous prime is 56672393. The next prime is 56672411. The reversal of 56672401 is 10427665.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35521600 + 21150801 = 5960^2 + 4599^2 .

It is a cyclic number.

It is not a de Polignac number, because 56672401 - 2³ = 56672393 is a prime.

It is a super-2 number, since 2×56672401² = 6423522070209602, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56672411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28336200 + 28336201.

It is an arithmetic number, because the mean of its divisors is an integer number (28336201).

Almost surely, 2^56672401 is an apocalyptic number.

It is an amenable number.

56672401 is a deficient number, since it is larger than the sum of its proper divisors (1).

56672401 is an equidigital number, since it uses as much as digits as its factorization.

56672401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 56672401 is about 7528.1073982775. The cubic root of 56672401 is about 384.1114065680. Note that the first 3 decimals are identical.

The spelling of 56672401 in words is "fifty-six million, six hundred seventy-two thousand, four hundred one".