4125625 has 40 divisors (see below), whose sum is σ = 6297984. Its totient is φ = 2640000.

The previous prime is 4125623. The next prime is 4125629. The reversal of 4125625 is 5265214.

It is not a de Polignac number, because 4125625 - 2¹ = 4125623 is a prime.

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

4125625 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4125625.

It is not an unprimeable number, because it can be changed into a prime (4125623) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 100605 + ... + 100645.

Almost surely, 2^4125625 is an apocalyptic number.

It is an amenable number.

4125625 is a deficient number, since it is larger than the sum of its proper divisors (2172359).

4125625 is an equidigital number, since it uses as much as digits as its factorization.

4125625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91 (or 76 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 4125625 is about 2031.1634596950. The cubic root of 4125625 is about 160.3848159249.

4125625 divided by its sum of digits (25) gives a triangular number (165025 = T₅₇₄).

It can be divided in two parts, 41 and 25625, that multiplied together give a square (1050625 = 1025²).

The spelling of 4125625 in words is "four million, one hundred twenty-five thousand, six hundred twenty-five".