155723125 has 40 divisors (see below), whose sum is σ = 204684480. Its totient is φ = 118320000.

The previous prime is 155723021. The next prime is 155723131. The reversal of 155723125 is 521327551.

It is not a de Polignac number, because 155723125 - 2¹¹ = 155721077 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1511824 + ... + 1511926.

It is an arithmetic number, because the mean of its divisors is an integer number (5117112).

Almost surely, 2^155723125 is an apocalyptic number.

It is an amenable number.

155723125 is a deficient number, since it is larger than the sum of its proper divisors (48961355).

155723125 is an equidigital number, since it uses as much as digits as its factorization.

155723125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 208 counting only the distinct ones).

The product of its digits is 10500, while the sum is 31.

The square root of 155723125 is about 12478.9072037579. The cubic root of 155723125 is about 538.0025946172.

The spelling of 155723125 in words is "one hundred fifty-five million, seven hundred twenty-three thousand, one hundred twenty-five".