25054538 has 4 divisors (see below), whose sum is σ = 37581810. Its totient is φ = 12527268.

The previous prime is 25054537. The next prime is 25054571. The reversal of 25054538 is 83545052.

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., 13446889 + 11607649 = 3667^2 + 3407^2 .

It is not an unprimeable number, because it can be changed into a prime (25054537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6263633 + ... + 6263636.

Almost surely, 2^25054538 is an apocalyptic number.

25054538 is a deficient number, since it is larger than the sum of its proper divisors (12527272).

25054538 is a wasteful number, since it uses less digits than its factorization.

25054538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12527271.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 25054538 is about 5005.4508288465. The cubic root of 25054538 is about 292.6142461644.

The spelling of 25054538 in words is "twenty-five million, fifty-four thousand, five hundred thirty-eight".