125527477 has 4 divisors (see below), whose sum is σ = 125974476. Its totient is φ = 125080480.

The previous prime is 125527429. The next prime is 125527481. The reversal of 125527477 is 774725521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 774725521 = 103 ⋅7521607.

It can be written as a sum of positive squares in 2 ways, for example, as 79816356 + 45711121 = 8934^2 + 6761^2 .

It is a cyclic number.

It is not a de Polignac number, because 125527477 - 2⁷ = 125527349 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125527427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223078 + ... + 223639.

It is an arithmetic number, because the mean of its divisors is an integer number (31493619).

Almost surely, 2^125527477 is an apocalyptic number.

It is an amenable number.

125527477 is a deficient number, since it is larger than the sum of its proper divisors (446999).

125527477 is an equidigital number, since it uses as much as digits as its factorization.

125527477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446998.

The product of its digits is 137200, while the sum is 40.

The square root of 125527477 is about 11203.9045426137. The cubic root of 125527477 is about 500.7023157101.

The spelling of 125527477 in words is "one hundred twenty-five million, five hundred twenty-seven thousand, four hundred seventy-seven".