25090481 has 8 divisors (see below), whose sum is σ = 27952680. Its totient is φ = 22361472.

The previous prime is 25090451. The next prime is 25090489. The reversal of 25090481 is 18409052.

It can be written as a sum of positive squares in 4 ways, for example, as 400 + 25090081 = 20^2 + 5009^2 .

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 25090481 - 2¹⁰ = 25089457 is a prime.

It is a super-2 number, since 2×25090481² = 1259064473622722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25090489) 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, 32900 + ... + 33653.

It is an arithmetic number, because the mean of its divisors is an integer number (3494085).

Almost surely, 2^25090481 is an apocalyptic number.

It is an amenable number.

25090481 is a deficient number, since it is larger than the sum of its proper divisors (2862199).

25090481 is a wasteful number, since it uses less digits than its factorization.

25090481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66595.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 25090481 is about 5009.0399279702. The cubic root of 25090481 is about 292.7541065023.

The spelling of 25090481 in words is "twenty-five million, ninety thousand, four hundred eighty-one".