157206425 has 24 divisors (see below), whose sum is σ = 204129792. Its totient is φ = 119952000.

The previous prime is 157206407. The next prime is 157206431. The reversal of 157206425 is 524602751.

It is not a de Polignac number, because 157206425 - 2¹² = 157202329 is a prime.

It is a super-2 number, since 2×157206425² = 49427720122561250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 157206391 and 157206400.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53597 + ... + 56453.

It is an arithmetic number, because the mean of its divisors is an integer number (8505408).

Almost surely, 2^157206425 is an apocalyptic number.

It is an amenable number.

157206425 is a deficient number, since it is larger than the sum of its proper divisors (46923367).

157206425 is a wasteful number, since it uses less digits than its factorization.

157206425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2969 (or 2964 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 157206425 is about 12538.1986345727. The cubic root of 157206425 is about 539.7054005803.

The spelling of 157206425 in words is "one hundred fifty-seven million, two hundred six thousand, four hundred twenty-five".