157425557 has 2 divisors, whose sum is σ = 157425558. Its totient is φ = 157425556.

The previous prime is 157425551. The next prime is 157425571. The reversal of 157425557 is 755524751.

It is a happy number.

157425557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98227921 + 59197636 = 9911^2 + 7694^2 .

It is a cyclic number.

It is not a de Polignac number, because 157425557 - 2⁶ = 157425493 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 (157425551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78712778 + 78712779.

It is an arithmetic number, because the mean of its divisors is an integer number (78712779).

Almost surely, 2^157425557 is an apocalyptic number.

It is an amenable number.

157425557 is a deficient number, since it is larger than the sum of its proper divisors (1).

157425557 is an equidigital number, since it uses as much as digits as its factorization.

157425557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 245000, while the sum is 41.

The square root of 157425557 is about 12546.9341673574. The cubic root of 157425557 is about 539.9560515216.

The spelling of 157425557 in words is "one hundred fifty-seven million, four hundred twenty-five thousand, five hundred fifty-seven".