25940291 has 8 divisors (see below), whose sum is σ = 27983424. Its totient is φ = 23904000.

The previous prime is 25940281. The next prime is 25940303. The reversal of 25940291 is 19204952.

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 25940291 - 2¹⁴ = 25923907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25940221) 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, 8435 + ... + 11091.

It is an arithmetic number, because the mean of its divisors is an integer number (3497928).

Almost surely, 2^25940291 is an apocalyptic number.

25940291 is a deficient number, since it is larger than the sum of its proper divisors (2043133).

25940291 is a wasteful number, since it uses less digits than its factorization.

25940291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3421.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 25940291 is about 5093.1611990983. The cubic root of 25940291 is about 296.0226539455.

The spelling of 25940291 in words is "twenty-five million, nine hundred forty thousand, two hundred ninety-one".