7525981 has 8 divisors (see below), whose sum is σ = 7704000. Its totient is φ = 7349760.

The previous prime is 7525979. The next prime is 7526003. The reversal of 7525981 is 1895257.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7525981 - 2¹ = 7525979 is a prime.

It is a super-2 number, since 2×7525981² = 113280780024722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7525981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7525961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11421 + ... + 12061.

It is an arithmetic number, because the mean of its divisors is an integer number (963000).

Almost surely, 2^7525981 is an apocalyptic number.

It is an amenable number.

7525981 is a deficient number, since it is larger than the sum of its proper divisors (178019).

7525981 is a wasteful number, since it uses less digits than its factorization.

7525981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899.

The product of its digits is 25200, while the sum is 37.

The square root of 7525981 is about 2743.3521465536. The cubic root of 7525981 is about 195.9691486218.

The spelling of 7525981 in words is "seven million, five hundred twenty-five thousand, nine hundred eighty-one".