7543425 has 24 divisors (see below), whose sum is σ = 13017024. Its totient is φ = 3847360.

The previous prime is 7543409. The next prime is 7543429. The reversal of 7543425 is 5243457.

7543425 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7543425 - 2⁴ = 7543409 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 7543392 and 7543401.

It is not an unprimeable number, because it can be changed into a prime (7543429) 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, 462 + ... + 3911.

It is an arithmetic number, because the mean of its divisors is an integer number (542376).

Almost surely, 2^7543425 is an apocalyptic number.

7543425 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7543425 is a deficient number, since it is larger than the sum of its proper divisors (5473599).

7543425 is a wasteful number, since it uses less digits than its factorization.

7543425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4409 (or 4404 counting only the distinct ones).

The product of its digits is 16800, while the sum is 30.

The square root of 7543425 is about 2746.5296284584. The cubic root of 7543425 is about 196.1204399976.

Subtracting from 7543425 its reverse (5243457), we obtain a cube (2299968 = 132³).

The spelling of 7543425 in words is "seven million, five hundred forty-three thousand, four hundred twenty-five".