155267025 has 24 divisors (see below), whose sum is σ = 258745344. Its totient is φ = 82152000.

The previous prime is 155267017. The next prime is 155267029. The reversal of 155267025 is 520762551.

It is not a de Polignac number, because 155267025 - 2³ = 155267017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155267029) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1375 + ... + 17675.

It is an arithmetic number, because the mean of its divisors is an integer number (10781056).

Almost surely, 2^155267025 is an apocalyptic number.

155267025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155267025 is a deficient number, since it is larger than the sum of its proper divisors (103478319).

155267025 is a wasteful number, since it uses less digits than its factorization.

155267025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16441 (or 16436 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 155267025 is about 12460.6189653644. The cubic root of 155267025 is about 537.4768261146.

The spelling of 155267025 in words is "one hundred fifty-five million, two hundred sixty-seven thousand, twenty-five".