25272451 has 4 divisors (see below), whose sum is σ = 26602600. Its totient is φ = 23942304.

The previous prime is 25272449. The next prime is 25272463. The reversal of 25272451 is 15427252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25272451 - 2¹ = 25272449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25272431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 665046 + ... + 665083.

It is an arithmetic number, because the mean of its divisors is an integer number (6650650).

Almost surely, 2^25272451 is an apocalyptic number.

25272451 is a deficient number, since it is larger than the sum of its proper divisors (1330149).

25272451 is a wasteful number, since it uses less digits than its factorization.

25272451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330148.

The product of its digits is 5600, while the sum is 28.

The square root of 25272451 is about 5027.1712721967. The cubic root of 25272451 is about 293.4601404504.

The spelling of 25272451 in words is "twenty-five million, two hundred seventy-two thousand, four hundred fifty-one".