7750725 has 24 divisors (see below), whose sum is σ = 13570560. Its totient is φ = 3889920.

The previous prime is 7750711. The next prime is 7750733. The reversal of 7750725 is 5270577.

It is not a de Polignac number, because 7750725 - 2⁴ = 7750709 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1765 + ... + 4314.

It is an arithmetic number, because the mean of its divisors is an integer number (565440).

Almost surely, 2^7750725 is an apocalyptic number.

7750725 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7750725 is a deficient number, since it is larger than the sum of its proper divisors (5819835).

7750725 is a wasteful number, since it uses less digits than its factorization.

7750725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6109 (or 6104 counting only the distinct ones).

The product of its (nonzero) digits is 17150, while the sum is 33.

The square root of 7750725 is about 2784.0123922138. The cubic root of 7750725 is about 197.9007511979.

The spelling of 7750725 in words is "seven million, seven hundred fifty thousand, seven hundred twenty-five".