155525025 has 12 divisors (see below), whose sum is σ = 257134832. Its totient is φ = 82946640.

The previous prime is 155524991. The next prime is 155525081. The reversal of 155525025 is 520525551.

It is not a de Polignac number, because 155525025 - 2¹² = 155520929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155524983 and 155525001.

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 11 ways as a sum of consecutive naturals, for example, 1036759 + ... + 1036908.

Almost surely, 2^155525025 is an apocalyptic number.

155525025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155525025 is a deficient number, since it is larger than the sum of its proper divisors (101609807).

155525025 is a wasteful number, since it uses less digits than its factorization.

155525025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2073680 (or 2073675 counting only the distinct ones).

The product of its (nonzero) digits is 12500, while the sum is 30.

The square root of 155525025 is about 12470.9672840562. The cubic root of 155525025 is about 537.7743614635.

The spelling of 155525025 in words is "one hundred fifty-five million, five hundred twenty-five thousand, twenty-five".