155125051 has 8 divisors (see below), whose sum is σ = 167745600. Its totient is φ = 142892928.

The previous prime is 155125049. The next prime is 155125093. The reversal of 155125051 is 150521551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 155125051 - 2¹ = 155125049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155125001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96276 + ... + 97873.

It is an arithmetic number, because the mean of its divisors is an integer number (20968200).

Almost surely, 2^155125051 is an apocalyptic number.

155125051 is a deficient number, since it is larger than the sum of its proper divisors (12620549).

155125051 is a wasteful number, since it uses less digits than its factorization.

155125051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194213.

The product of its (nonzero) digits is 1250, while the sum is 25.

The square root of 155125051 is about 12454.9207544649. The cubic root of 155125051 is about 537.3129557222.

The spelling of 155125051 in words is "one hundred fifty-five million, one hundred twenty-five thousand, fifty-one".