125544254449 has 8 divisors (see below), whose sum is σ = 126021692160. Its totient is φ = 125067586896.

The previous prime is 125544254443. The next prime is 125544254453. The reversal of 125544254449 is 944452445521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125544254449 - 2⁵ = 125544254417 is a prime.

It is a super-2 number, since 2×125544254449² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125544254443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135159 + ... + 518995.

It is an arithmetic number, because the mean of its divisors is an integer number (15752711520).

Almost surely, 2^125544254449 is an apocalyptic number.

It is an amenable number.

125544254449 is a deficient number, since it is larger than the sum of its proper divisors (477437711).

125544254449 is an equidigital number, since it uses as much as digits as its factorization.

125544254449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385079.

The product of its digits is 4608000, while the sum is 49.

The spelling of 125544254449 in words is "one hundred twenty-five billion, five hundred forty-four million, two hundred fifty-four thousand, four hundred forty-nine".