56694151 has 2 divisors, whose sum is σ = 56694152. Its totient is φ = 56694150.

The previous prime is 56694137. The next prime is 56694179. The reversal of 56694151 is 15149665.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56694151 - 2⁷ = 56694023 is a prime.

It is a super-2 number, since 2×56694151² = 6428453515221602, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56694151.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56694181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28347075 + 28347076.

It is an arithmetic number, because the mean of its divisors is an integer number (28347076).

Almost surely, 2^56694151 is an apocalyptic number.

56694151 is a deficient number, since it is larger than the sum of its proper divisors (1).

56694151 is an equidigital number, since it uses as much as digits as its factorization.

56694151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 37.

The square root of 56694151 is about 7529.5518458936. The cubic root of 56694151 is about 384.1605389758.

The spelling of 56694151 in words is "fifty-six million, six hundred ninety-four thousand, one hundred fifty-one".