155087275 has 48 divisors (see below), whose sum is σ = 233985024. Its totient is φ = 99665280.

The previous prime is 155087249. The next prime is 155087281. The reversal of 155087275 is 572780551.

It is not a de Polignac number, because 155087275 - 2¹⁷ = 154956203 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 212962 + ... + 213688.

It is an arithmetic number, because the mean of its divisors is an integer number (4874688).

Almost surely, 2^155087275 is an apocalyptic number.

155087275 is a deficient number, since it is larger than the sum of its proper divisors (78897749).

155087275 is a wasteful number, since it uses less digits than its factorization.

155087275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820 (or 815 counting only the distinct ones).

The product of its (nonzero) digits is 98000, while the sum is 40.

The square root of 155087275 is about 12453.4041530820. The cubic root of 155087275 is about 537.2693367582.

The spelling of 155087275 in words is "one hundred fifty-five million, eighty-seven thousand, two hundred seventy-five".