125125450 has 24 divisors (see below), whose sum is σ = 244984320. Its totient is φ = 47415600.

The previous prime is 125125447. The next prime is 125125463. The reversal of 125125450 is 54521521.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64906 + ... + 66805.

It is an arithmetic number, because the mean of its divisors is an integer number (10207680).

Almost surely, 2^125125450 is an apocalyptic number.

125125450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125125450 is a deficient number, since it is larger than the sum of its proper divisors (119858870).

125125450 is a wasteful number, since it uses less digits than its factorization.

125125450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131742 (or 131737 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 125125450 is about 11185.9487751375. The cubic root of 125125450 is about 500.1672107416.

Adding to 125125450 its reverse (54521521), we get a palindrome (179646971).

The spelling of 125125450 in words is "one hundred twenty-five million, one hundred twenty-five thousand, four hundred fifty".