25328494 has 4 divisors (see below), whose sum is σ = 37992744. Its totient is φ = 12664246.

The previous prime is 25328491. The next prime is 25328507. The reversal of 25328494 is 49482352.

It is a happy number.

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

It is a super-3 number, since 3×25328494³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25328491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6332122 + ... + 6332125.

It is an arithmetic number, because the mean of its divisors is an integer number (9498186).

Almost surely, 2^25328494 is an apocalyptic number.

25328494 is a deficient number, since it is larger than the sum of its proper divisors (12664250).

25328494 is a wasteful number, since it uses less digits than its factorization.

25328494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12664249.

The product of its digits is 69120, while the sum is 37.

The square root of 25328494 is about 5032.7421948675. The cubic root of 25328494 is about 293.6769014430.

It can be divided in two parts, 2532 and 8494, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 25328494 in words is "twenty-five million, three hundred twenty-eight thousand, four hundred ninety-four".