125777475 has 96 divisors (see below), whose sum is σ = 249359040. Its totient is φ = 61931520.

The previous prime is 125777461. The next prime is 125777479. The reversal of 125777475 is 574777521.

125777475 is a `hidden beast` number, since 1 + 2 + 577 + 7 + 4 + 75 = 666.

It is not a de Polignac number, because 125777475 - 2⁶ = 125777411 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 125777475.

It is not an unprimeable number, because it can be changed into a prime (125777479) 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 95 ways as a sum of consecutive naturals, for example, 1113019 + ... + 1113131.

It is an arithmetic number, because the mean of its divisors is an integer number (2597490).

Almost surely, 2^125777475 is an apocalyptic number.

125777475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125777475 is a deficient number, since it is larger than the sum of its proper divisors (123581565).

125777475 is a wasteful number, since it uses less digits than its factorization.

125777475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246 (or 235 counting only the distinct ones).

The product of its digits is 480200, while the sum is 45.

The square root of 125777475 is about 11215.0557287960. The cubic root of 125777475 is about 501.0344915118.

The spelling of 125777475 in words is "one hundred twenty-five million, seven hundred seventy-seven thousand, four hundred seventy-five".