125044425 has 72 divisors (see below), whose sum is σ = 252657440. Its totient is φ = 60588000.

The previous prime is 125044417. The next prime is 125044427. The reversal of 125044425 is 524440521.

It is not a de Polignac number, because 125044425 - 2³ = 125044417 is a prime.

It is a super-2 number, since 2×125044425² = 31272216447161250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (125044427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 80910 + ... + 82440.

Almost surely, 2^125044425 is an apocalyptic number.

125044425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125044425 is an abundant number, since it is smaller than the sum of its proper divisors (127613015).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125044425 is a wasteful number, since it uses less digits than its factorization.

125044425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572 (or 1550 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 125044425 is about 11182.3264574059. The cubic root of 125044425 is about 500.0592263175.

Adding to 125044425 its reverse (524440521), we get a palindrome (649484946).

The spelling of 125044425 in words is "one hundred twenty-five million, forty-four thousand, four hundred twenty-five".