25239901 has 8 divisors (see below), whose sum is σ = 26541504. Its totient is φ = 23955360.

The previous prime is 25239881. The next prime is 25239937. The reversal of 25239901 is 10993252.

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 25239901 - 2⁵ = 25239869 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 (25239971) 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, 1176 + ... + 7201.

It is an arithmetic number, because the mean of its divisors is an integer number (3317688).

Almost surely, 2^25239901 is an apocalyptic number.

It is an amenable number.

25239901 is a deficient number, since it is larger than the sum of its proper divisors (1301603).

25239901 is a wasteful number, since it uses less digits than its factorization.

25239901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8531.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 25239901 is about 5023.9328220031. The cubic root of 25239901 is about 293.3340976507.

The spelling of 25239901 in words is "twenty-five million, two hundred thirty-nine thousand, nine hundred one".