125401025 has 12 divisors (see below), whose sum is σ = 155643312. Its totient is φ = 100226640.

The previous prime is 125401013. The next prime is 125401043. The reversal of 125401025 is 520104521.

It is not a de Polignac number, because 125401025 - 2⁴ = 125401009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125400988 and 125401006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39134 + ... + 42216.

It is an arithmetic number, because the mean of its divisors is an integer number (12970276).

Almost surely, 2^125401025 is an apocalyptic number.

It is an amenable number.

125401025 is a deficient number, since it is larger than the sum of its proper divisors (30242287).

125401025 is a wasteful number, since it uses less digits than its factorization.

125401025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4720 (or 4715 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 125401025 is about 11198.2599094681. The cubic root of 125401025 is about 500.5341292088.

Adding to 125401025 its reverse (520104521), we get a palindrome (645505546).

The spelling of 125401025 in words is "one hundred twenty-five million, four hundred one thousand, twenty-five".