7440525 has 48 divisors (see below), whose sum is σ = 13947520. Its totient is φ = 3888000.

The previous prime is 7440491. The next prime is 7440529. The reversal of 7440525 is 5250447.

It is not a de Polignac number, because 7440525 - 2⁷ = 7440397 is a prime.

It is a super-2 number, since 2×7440525² = 110722824551250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7440529) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49200 + ... + 49350.

Almost surely, 2^7440525 is an apocalyptic number.

7440525 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7440525 is a deficient number, since it is larger than the sum of its proper divisors (6506995).

7440525 is a wasteful number, since it uses less digits than its factorization.

7440525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 7440525 is about 2727.7325748687. The cubic root of 7440525 is about 195.2245932940.

The spelling of 7440525 in words is "seven million, four hundred forty thousand, five hundred twenty-five".