125549165087 has 2 divisors, whose sum is σ = 125549165088. Its totient is φ = 125549165086.

The previous prime is 125549165083. The next prime is 125549165101. The reversal of 125549165087 is 780561945521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125549165087 - 2² = 125549165083 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125549165083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62774582543 + 62774582544.

It is an arithmetic number, because the mean of its divisors is an integer number (62774582544).

Almost surely, 2^125549165087 is an apocalyptic number.

125549165087 is a deficient number, since it is larger than the sum of its proper divisors (1).

125549165087 is an equidigital number, since it uses as much as digits as its factorization.

125549165087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024000, while the sum is 53.

The spelling of 125549165087 in words is "one hundred twenty-five billion, five hundred forty-nine million, one hundred sixty-five thousand, eighty-seven".