56554510157 has 2 divisors, whose sum is σ = 56554510158. Its totient is φ = 56554510156.

The previous prime is 56554510151. The next prime is 56554510277. The reversal of 56554510157 is 75101545565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43123090921 + 13431419236 = 207661^2 + 115894^2 .

It is a cyclic number.

It is not a de Polignac number, because 56554510157 - 2⁸ = 56554509901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56554510151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28277255078 + 28277255079.

It is an arithmetic number, because the mean of its divisors is an integer number (28277255079).

Almost surely, 2^56554510157 is an apocalyptic number.

It is an amenable number.

56554510157 is a deficient number, since it is larger than the sum of its proper divisors (1).

56554510157 is an equidigital number, since it uses as much as digits as its factorization.

56554510157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 525000, while the sum is 44.

The spelling of 56554510157 in words is "fifty-six billion, five hundred fifty-four million, five hundred ten thousand, one hundred fifty-seven".