25494874 has 4 divisors (see below), whose sum is σ = 38242314. Its totient is φ = 12747436.

The previous prime is 25494853. The next prime is 25494877. The reversal of 25494874 is 47849452.

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

It can be written as a sum of positive squares in only one way, i.e., 25452025 + 42849 = 5045^2 + 207^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25494874.

It is not an unprimeable number, because it can be changed into a prime (25494877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6373717 + ... + 6373720.

Almost surely, 2^25494874 is an apocalyptic number.

25494874 is a deficient number, since it is larger than the sum of its proper divisors (12747440).

25494874 is a wasteful number, since it uses less digits than its factorization.

25494874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12747439.

The product of its digits is 322560, while the sum is 43.

The square root of 25494874 is about 5049.2448940411. The cubic root of 25494874 is about 294.3185419349.

The spelling of 25494874 in words is "twenty-five million, four hundred ninety-four thousand, eight hundred seventy-four".