155125525 has 6 divisors (see below), whose sum is σ = 192355682. Its totient is φ = 124100400.

The previous prime is 155125441. The next prime is 155125559. The reversal of 155125525 is 525521551.

155125525 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 3 ways, for example, as 23409 + 155102116 = 153^2 + 12454^2 .

It is not a de Polignac number, because 155125525 - 2¹⁷ = 154994453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3102486 + ... + 3102535.

Almost surely, 2^155125525 is an apocalyptic number.

It is an amenable number.

155125525 is a deficient number, since it is larger than the sum of its proper divisors (37230157).

155125525 is an equidigital number, since it uses as much as digits as its factorization.

155125525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6205031 (or 6205026 counting only the distinct ones).

The product of its digits is 12500, while the sum is 31.

The square root of 155125525 is about 12454.9397830740. The cubic root of 155125525 is about 537.3135029926.

The spelling of 155125525 in words is "one hundred fifty-five million, one hundred twenty-five thousand, five hundred twenty-five".