25442971 has 8 divisors (see below), whose sum is σ = 26875904. Its totient is φ = 24048360.

The previous prime is 25442969. The next prime is 25442981. The reversal of 25442971 is 17924452.

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 25442971 - 2¹ = 25442969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25442981) 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, 8211 + ... + 10876.

It is an arithmetic number, because the mean of its divisors is an integer number (3359488).

Almost surely, 2^25442971 is an apocalyptic number.

25442971 is a deficient number, since it is larger than the sum of its proper divisors (1432933).

25442971 is a wasteful number, since it uses less digits than its factorization.

25442971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19161.

The product of its digits is 20160, while the sum is 34.

The square root of 25442971 is about 5044.1025961017. The cubic root of 25442971 is about 294.1186796223.

The spelling of 25442971 in words is "twenty-five million, four hundred forty-two thousand, nine hundred seventy-one".