25094721 has 8 divisors (see below), whose sum is σ = 33488640. Its totient is φ = 16715312.

The previous prime is 25094711. The next prime is 25094749. The reversal of 25094721 is 12749052.

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 25094721 - 2⁵ = 25094689 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (25094711) 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, 1411 + ... + 7223.

It is an arithmetic number, because the mean of its divisors is an integer number (4186080).

Almost surely, 2^25094721 is an apocalyptic number.

It is an amenable number.

25094721 is a deficient number, since it is larger than the sum of its proper divisors (8393919).

25094721 is a wasteful number, since it uses less digits than its factorization.

25094721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7255.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 25094721 is about 5009.4631448889. The cubic root of 25094721 is about 292.7705962552.

The spelling of 25094721 in words is "twenty-five million, ninety-four thousand, seven hundred twenty-one".