125254976553 has 48 divisors (see below), whose sum is σ = 218340021120. Its totient is φ = 67593097728.

The previous prime is 125254976501. The next prime is 125254976573. The reversal of 125254976553 is 355679452521.

125254976553 is a `hidden beast` number, since 1 + 2 + 525 + 4 + 9 + 7 + 65 + 53 = 666.

It is not a de Polignac number, because 125254976553 - 2¹² = 125254972457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125254976553.

It is not an unprimeable number, because it can be changed into a prime (125254976573) 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 47 ways as a sum of consecutive naturals, for example, 214401 + ... + 544497.

It is an arithmetic number, because the mean of its divisors is an integer number (4548750440).

Almost surely, 2^125254976553 is an apocalyptic number.

It is an amenable number.

125254976553 is a deficient number, since it is larger than the sum of its proper divisors (93085044567).

125254976553 is a wasteful number, since it uses less digits than its factorization.

125254976553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330446 (or 330443 counting only the distinct ones).

The product of its digits is 11340000, while the sum is 54.

The spelling of 125254976553 in words is "one hundred twenty-five billion, two hundred fifty-four million, nine hundred seventy-six thousand, five hundred fifty-three".