155250975 has 48 divisors (see below), whose sum is σ = 281589120. Its totient is φ = 74851200.

The previous prime is 155250971. The next prime is 155250983. The reversal of 155250975 is 579052551.

It is not a de Polignac number, because 155250975 - 2² = 155250971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155250971) 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 47 ways as a sum of consecutive naturals, for example, 186861 + ... + 187689.

It is an arithmetic number, because the mean of its divisors is an integer number (5866440).

Almost surely, 2^155250975 is an apocalyptic number.

155250975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

155250975 is a deficient number, since it is larger than the sum of its proper divisors (126338145).

155250975 is a wasteful number, since it uses less digits than its factorization.

155250975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080 (or 1075 counting only the distinct ones).

The product of its (nonzero) digits is 78750, while the sum is 39.

The square root of 155250975 is about 12459.9749197179. The cubic root of 155250975 is about 537.4583057617.

The spelling of 155250975 in words is "one hundred fifty-five million, two hundred fifty thousand, nine hundred seventy-five".