125577787 has 2 divisors, whose sum is σ = 125577788. Its totient is φ = 125577786.

The previous prime is 125577773. The next prime is 125577811. The reversal of 125577787 is 787775521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125577787 - 2²³ = 117189179 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125577787.

It is not a weakly prime, because it can be changed into another prime (125577737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62788893 + 62788894.

It is an arithmetic number, because the mean of its divisors is an integer number (62788894).

Almost surely, 2^125577787 is an apocalyptic number.

125577787 is a deficient number, since it is larger than the sum of its proper divisors (1).

125577787 is an equidigital number, since it uses as much as digits as its factorization.

125577787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960400, while the sum is 49.

The square root of 125577787 is about 11206.1495171178. The cubic root of 125577787 is about 500.7691987265.

The spelling of 125577787 in words is "one hundred twenty-five million, five hundred seventy-seven thousand, seven hundred eighty-seven".