155051325 has 144 divisors (see below), whose sum is σ = 335811840. Its totient is φ = 67392000.

The previous prime is 155051321. The next prime is 155051327. The reversal of 155051325 is 523150551.

It is not a de Polignac number, because 155051325 - 2² = 155051321 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155051321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1962636 + ... + 1962714.

Almost surely, 2^155051325 is an apocalyptic number.

155051325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155051325 is an abundant number, since it is smaller than the sum of its proper divisors (180760515).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155051325 is a wasteful number, since it uses less digits than its factorization.

155051325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 155051325 is about 12451.9606889839. The cubic root of 155051325 is about 537.2278196505.

The spelling of 155051325 in words is "one hundred fifty-five million, fifty-one thousand, three hundred twenty-five".