56687419 has 2 divisors, whose sum is σ = 56687420. Its totient is φ = 56687418.

The previous prime is 56687399. The next prime is 56687443. The reversal of 56687419 is 91478665.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56687419 - 2⁷ = 56687291 is a prime.

It is a super-2 number, since 2×56687419² = 6426926945763122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56681419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28343709 + 28343710.

It is an arithmetic number, because the mean of its divisors is an integer number (28343710).

Almost surely, 2^56687419 is an apocalyptic number.

56687419 is a deficient number, since it is larger than the sum of its proper divisors (1).

56687419 is an equidigital number, since it uses as much as digits as its factorization.

56687419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 46.

The square root of 56687419 is about 7529.1047940642. The cubic root of 56687419 is about 384.1453329914.

The spelling of 56687419 in words is "fifty-six million, six hundred eighty-seven thousand, four hundred nineteen".