155904625 has 16 divisors (see below), whose sum is σ = 195199056. Its totient is φ = 124320000.

The previous prime is 155904607. The next prime is 155904629. The reversal of 155904625 is 526409551.

155904625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 76195441 + 79709184 = 8729^2 + 8928^2 .

It is not a de Polignac number, because 155904625 - 2⁹ = 155904113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155904629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40275 + ... + 43975.

It is an arithmetic number, because the mean of its divisors is an integer number (12199941).

Almost surely, 2^155904625 is an apocalyptic number.

It is an amenable number.

155904625 is a deficient number, since it is larger than the sum of its proper divisors (39294431).

155904625 is an equidigital number, since it uses as much as digits as its factorization.

155904625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4053 (or 4043 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 37.

The square root of 155904625 is about 12486.1773573820. The cubic root of 155904625 is about 538.2115328817.

The spelling of 155904625 in words is "one hundred fifty-five million, nine hundred four thousand, six hundred twenty-five".