25233661 has 8 divisors (see below), whose sum is σ = 26979264. Its totient is φ = 23517120.

The previous prime is 25233631. The next prime is 25233673. The reversal of 25233661 is 16633252.

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

It is not a de Polignac number, because 25233661 - 2⁵ = 25233629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25233601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5455 + ... + 8956.

It is an arithmetic number, because the mean of its divisors is an integer number (3372408).

Almost surely, 2^25233661 is an apocalyptic number.

It is an amenable number.

25233661 is a deficient number, since it is larger than the sum of its proper divisors (1745603).

25233661 is a wasteful number, since it uses less digits than its factorization.

25233661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14531.

The product of its digits is 6480, while the sum is 28.

The square root of 25233661 is about 5023.3117562023. The cubic root of 25233661 is about 293.3099222305.

The spelling of 25233661 in words is "twenty-five million, two hundred thirty-three thousand, six hundred sixty-one".