125257477 has 4 divisors (see below), whose sum is σ = 125564140. Its totient is φ = 124950816.

The previous prime is 125257463. The next prime is 125257493. The reversal of 125257477 is 774752521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 61481281 + 63776196 = 7841^2 + 7986^2 .

It is a cyclic number.

It is not a de Polignac number, because 125257477 - 2¹⁵ = 125224709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125207477) 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, 152718 + ... + 153535.

It is an arithmetic number, because the mean of its divisors is an integer number (31391035).

Almost surely, 2^125257477 is an apocalyptic number.

It is an amenable number.

125257477 is a deficient number, since it is larger than the sum of its proper divisors (306663).

125257477 is an equidigital number, since it uses as much as digits as its factorization.

125257477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306662.

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

The square root of 125257477 is about 11191.8486855390. The cubic root of 125257477 is about 500.3430672226.

It can be divided in two parts, 12525 and 7477, that added together give a palindrome (20002).

The spelling of 125257477 in words is "one hundred twenty-five million, two hundred fifty-seven thousand, four hundred seventy-seven".