157553017 has 2 divisors, whose sum is σ = 157553018. Its totient is φ = 157553016.

The previous prime is 157553009. The next prime is 157553063. The reversal of 157553017 is 710355751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153041641 + 4511376 = 12371^2 + 2124^2 .

It is a cyclic number.

It is not a de Polignac number, because 157553017 - 2³ = 157553009 is a prime.

It is not a weakly prime, because it can be changed into another prime (157553087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78776508 + 78776509.

It is an arithmetic number, because the mean of its divisors is an integer number (78776509).

Almost surely, 2^157553017 is an apocalyptic number.

It is an amenable number.

157553017 is a deficient number, since it is larger than the sum of its proper divisors (1).

157553017 is an equidigital number, since it uses as much as digits as its factorization.

157553017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18375, while the sum is 34.

The square root of 157553017 is about 12552.0124681264. The cubic root of 157553017 is about 540.1017378041.

The spelling of 157553017 in words is "one hundred fifty-seven million, five hundred fifty-three thousand, seventeen".