155125990051 has 2 divisors, whose sum is σ = 155125990052. Its totient is φ = 155125990050.

The previous prime is 155125990043. The next prime is 155125990073. The reversal of 155125990051 is 150099521551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 155125990051 - 2³ = 155125990043 is a prime.

It is not a weakly prime, because it can be changed into another prime (155125990351) 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 as a sum of consecutive naturals, namely, 77562995025 + 77562995026.

It is an arithmetic number, because the mean of its divisors is an integer number (77562995026).

Almost surely, 2^155125990051 is an apocalyptic number.

155125990051 is a deficient number, since it is larger than the sum of its proper divisors (1).

155125990051 is an equidigital number, since it uses as much as digits as its factorization.

155125990051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 101250, while the sum is 43.

The spelling of 155125990051 in words is "one hundred fifty-five billion, one hundred twenty-five million, nine hundred ninety thousand, fifty-one".