7544725 has 6 divisors (see below), whose sum is σ = 9355490. Its totient is φ = 6035760.

The previous prime is 7544723. The next prime is 7544731. The reversal of 7544725 is 5274457.

It can be written as a sum of positive squares in 3 ways, for example, as 178929 + 7365796 = 423^2 + 2714^2 .

It is not a de Polignac number, because 7544725 - 2¹ = 7544723 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7544723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 150870 + ... + 150919.

Almost surely, 2^7544725 is an apocalyptic number.

It is an amenable number.

7544725 is a deficient number, since it is larger than the sum of its proper divisors (1810765).

7544725 is a wasteful number, since it uses less digits than its factorization.

7544725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301799 (or 301794 counting only the distinct ones).

The product of its digits is 39200, while the sum is 34.

The square root of 7544725 is about 2746.7662805561. The cubic root of 7544725 is about 196.1317055226.

The spelling of 7544725 in words is "seven million, five hundred forty-four thousand, seven hundred twenty-five".