157865225 has 12 divisors (see below), whose sum is σ = 223717824. Its totient is φ = 108250320.

The previous prime is 157865207. The next prime is 157865251. The reversal of 157865225 is 522568751.

It is not a de Polignac number, because 157865225 - 2⁶ = 157865161 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 450869 + ... + 451218.

It is an arithmetic number, because the mean of its divisors is an integer number (18643152).

Almost surely, 2^157865225 is an apocalyptic number.

It is an amenable number.

157865225 is a deficient number, since it is larger than the sum of its proper divisors (65852599).

157865225 is an equidigital number, since it uses as much as digits as its factorization.

157865225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902104 (or 902099 counting only the distinct ones).

The product of its digits is 168000, while the sum is 41.

The square root of 157865225 is about 12564.4428845851. The cubic root of 157865225 is about 540.4582586901.

The spelling of 157865225 in words is "one hundred fifty-seven million, eight hundred sixty-five thousand, two hundred twenty-five".