56649407 has 2 divisors, whose sum is σ = 56649408. Its totient is φ = 56649406.

The previous prime is 56649403. The next prime is 56649427. The reversal of 56649407 is 70494665.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56649407 - 2² = 56649403 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56649401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28324703 + 28324704.

It is an arithmetic number, because the mean of its divisors is an integer number (28324704).

Almost surely, 2^56649407 is an apocalyptic number.

56649407 is a deficient number, since it is larger than the sum of its proper divisors (1).

56649407 is an equidigital number, since it uses as much as digits as its factorization.

56649407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 56649407 is about 7526.5800334548. The cubic root of 56649407 is about 384.0594503405.

The spelling of 56649407 in words is "fifty-six million, six hundred forty-nine thousand, four hundred seven".