25632514 has 4 divisors (see below), whose sum is σ = 38448774. Its totient is φ = 12816256.

The previous prime is 25632493. The next prime is 25632517. The reversal of 25632514 is 41523652.

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., 18636489 + 6996025 = 4317^2 + 2645^2 .

It is not an unprimeable number, because it can be changed into a prime (25632517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6408127 + ... + 6408130.

Almost surely, 2^25632514 is an apocalyptic number.

25632514 is a deficient number, since it is larger than the sum of its proper divisors (12816260).

25632514 is a wasteful number, since it uses less digits than its factorization.

25632514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12816259.

The product of its digits is 7200, while the sum is 28.

The square root of 25632514 is about 5062.8563084488. The cubic root of 25632514 is about 294.8472406462.

The spelling of 25632514 in words is "twenty-five million, six hundred thirty-two thousand, five hundred fourteen".