157625557 has 2 divisors, whose sum is σ = 157625558. Its totient is φ = 157625556.

The previous prime is 157625471. The next prime is 157625561. The reversal of 157625557 is 755526751.

It is a happy number.

157625557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127441521 + 30184036 = 11289^2 + 5494^2 .

It is a cyclic number.

It is not a de Polignac number, because 157625557 - 2¹⁵ = 157592789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157620557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78812778 + 78812779.

It is an arithmetic number, because the mean of its divisors is an integer number (78812779).

Almost surely, 2^157625557 is an apocalyptic number.

It is an amenable number.

157625557 is a deficient number, since it is larger than the sum of its proper divisors (1).

157625557 is an equidigital number, since it uses as much as digits as its factorization.

157625557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 367500, while the sum is 43.

The square root of 157625557 is about 12554.9017120804. The cubic root of 157625557 is about 540.1846156600.

The spelling of 157625557 in words is "one hundred fifty-seven million, six hundred twenty-five thousand, five hundred fifty-seven".