56490619 has 2 divisors, whose sum is σ = 56490620. Its totient is φ = 56490618.

The previous prime is 56490611. The next prime is 56490631. The reversal of 56490619 is 91609465.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56490619 - 2³ = 56490611 is a prime.

It is a super-2 number, since 2×56490619² = 6382380070006322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56490611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28245309 + 28245310.

It is an arithmetic number, because the mean of its divisors is an integer number (28245310).

Almost surely, 2^56490619 is an apocalyptic number.

56490619 is a deficient number, since it is larger than the sum of its proper divisors (1).

56490619 is an equidigital number, since it uses as much as digits as its factorization.

56490619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 56490619 is about 7516.0241484444. The cubic root of 56490619 is about 383.7002756469.

The spelling of 56490619 in words is "fifty-six million, four hundred ninety thousand, six hundred nineteen".