125507477 has 4 divisors (see below), whose sum is σ = 125857440. Its totient is φ = 125157516.

The previous prime is 125507467. The next prime is 125507491. The reversal of 125507477 is 774705521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 125507477 - 2²⁴ = 108730261 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125507477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125507467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174443 + ... + 175160.

It is an arithmetic number, because the mean of its divisors is an integer number (31464360).

Almost surely, 2^125507477 is an apocalyptic number.

It is an amenable number.

125507477 is a deficient number, since it is larger than the sum of its proper divisors (349963).

125507477 is an equidigital number, since it uses as much as digits as its factorization.

125507477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349962.

The product of its (nonzero) digits is 68600, while the sum is 38.

The square root of 125507477 is about 11203.0119610755. The cubic root of 125507477 is about 500.6757223871.

The spelling of 125507477 in words is "one hundred twenty-five million, five hundred seven thousand, four hundred seventy-seven".