25383491 has 8 divisors (see below), whose sum is σ = 29205600. Its totient is φ = 21610368.

The previous prime is 25383481. The next prime is 25383493. The reversal of 25383491 is 19438352.

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 25383491 - 2¹⁸ = 25121347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25383493) 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, 11126 + ... + 13211.

It is an arithmetic number, because the mean of its divisors is an integer number (3650700).

Almost surely, 2^25383491 is an apocalyptic number.

25383491 is a deficient number, since it is larger than the sum of its proper divisors (3822109).

25383491 is a wasteful number, since it uses less digits than its factorization.

25383491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24493.

The product of its digits is 25920, while the sum is 35.

The square root of 25383491 is about 5038.2031519184. The cubic root of 25383491 is about 293.8893061305.

The spelling of 25383491 in words is "twenty-five million, three hundred eighty-three thousand, four hundred ninety-one".