56494157 has 2 divisors, whose sum is σ = 56494158. Its totient is φ = 56494156.

The previous prime is 56494147. The next prime is 56494177. The reversal of 56494157 is 75149465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55636681 + 857476 = 7459^2 + 926^2 .

It is a cyclic number.

It is not a de Polignac number, because 56494157 - 2¹⁸ = 56232013 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56494147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28247078 + 28247079.

It is an arithmetic number, because the mean of its divisors is an integer number (28247079).

Almost surely, 2^56494157 is an apocalyptic number.

It is an amenable number.

56494157 is a deficient number, since it is larger than the sum of its proper divisors (1).

56494157 is an equidigital number, since it uses as much as digits as its factorization.

56494157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 41.

The square root of 56494157 is about 7516.2595085588. The cubic root of 56494157 is about 383.7082858455.

The spelling of 56494157 in words is "fifty-six million, four hundred ninety-four thousand, one hundred fifty-seven".