155796725 has 36 divisors (see below), whose sum is σ = 227412900. Its totient is φ = 105557760.

The previous prime is 155796709. The next prime is 155796737. The reversal of 155796725 is 527697551.

It can be written as a sum of positive squares in 6 ways, for example, as 45252529 + 110544196 = 6727^2 + 10514^2 .

It is not a de Polignac number, because 155796725 - 2⁴ = 155796709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 155796725.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 108311 + ... + 109739.

It is an arithmetic number, because the mean of its divisors is an integer number (6317025).

Almost surely, 2^155796725 is an apocalyptic number.

It is an amenable number.

155796725 is a deficient number, since it is larger than the sum of its proper divisors (71616175).

155796725 is a wasteful number, since it uses less digits than its factorization.

155796725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542 (or 1530 counting only the distinct ones).

The product of its digits is 661500, while the sum is 47.

The square root of 155796725 is about 12481.8558315661. The cubic root of 155796725 is about 538.0873406567.

The spelling of 155796725 in words is "one hundred fifty-five million, seven hundred ninety-six thousand, seven hundred twenty-five".