125501265277 has 2 divisors, whose sum is σ = 125501265278. Its totient is φ = 125501265276.

The previous prime is 125501265233. The next prime is 125501265283. The reversal of 125501265277 is 772562105521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68386957081 + 57114308196 = 261509^2 + 238986^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125501265277 is a prime.

It is a super-2 number, since 2×125501265277² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125501266277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62750632638 + 62750632639.

It is an arithmetic number, because the mean of its divisors is an integer number (62750632639).

Almost surely, 2^125501265277 is an apocalyptic number.

It is an amenable number.

125501265277 is a deficient number, since it is larger than the sum of its proper divisors (1).

125501265277 is an equidigital number, since it uses as much as digits as its factorization.

125501265277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 294000, while the sum is 43.

The spelling of 125501265277 in words is "one hundred twenty-five billion, five hundred one million, two hundred sixty-five thousand, two hundred seventy-seven".