125455324545 has 24 divisors (see below), whose sum is σ = 217972451112. Its totient is φ = 66750566400.

The previous prime is 125455324469. The next prime is 125455324549. The reversal of 125455324545 is 545423554521.

125455324545 is a `hidden beast` number, since 1 + 2 + 54 + 5 + 53 + 2 + 4 + 545 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4127805504 + 121327519041 = 64248^2 + 348321^2 .

It is not a de Polignac number, because 125455324545 - 2⁸ = 125455324289 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 125455324545.

It is not an unprimeable number, because it can be changed into a prime (125455324549) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3292096 + ... + 3329985.

It is an arithmetic number, because the mean of its divisors is an integer number (9082185463).

Almost surely, 2^125455324545 is an apocalyptic number.

125455324545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125455324545 is a deficient number, since it is larger than the sum of its proper divisors (92517126567).

125455324545 is a wasteful number, since it uses less digits than its factorization.

125455324545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6622513 (or 6622510 counting only the distinct ones).

The product of its digits is 2400000, while the sum is 45.

The spelling of 125455324545 in words is "one hundred twenty-five billion, four hundred fifty-five million, three hundred twenty-four thousand, five hundred forty-five".