125520425 has 24 divisors (see below), whose sum is σ = 158656512. Its totient is φ = 98496000.

The previous prime is 125520383. The next prime is 125520427. The reversal of 125520425 is 524025521.

It is not a de Polignac number, because 125520425 - 2¹² = 125516329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125520394 and 125520403.

It is not an unprimeable number, because it can be changed into a prime (125520427) 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, 463040 + ... + 463310.

It is an arithmetic number, because the mean of its divisors is an integer number (6610688).

Almost surely, 2^125520425 is an apocalyptic number.

It is an amenable number.

125520425 is a deficient number, since it is larger than the sum of its proper divisors (33136087).

125520425 is a wasteful number, since it uses less digits than its factorization.

125520425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569 (or 564 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 125520425 is about 11203.5898264797. The cubic root of 125520425 is about 500.6929392268.

Adding to 125520425 its reverse (524025521), we get a palindrome (649545946).

The spelling of 125520425 in words is "one hundred twenty-five million, five hundred twenty thousand, four hundred twenty-five".