25245534 has 16 divisors (see below), whose sum is σ = 50878080. Its totient is φ = 8350680.

The previous prime is 25245523. The next prime is 25245551. The reversal of 25245534 is 43554252.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15274 + ... + 16845.

It is an arithmetic number, because the mean of its divisors is an integer number (3179880).

Almost surely, 2^25245534 is an apocalyptic number.

25245534 is an abundant number, since it is smaller than the sum of its proper divisors (25632546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25245534 is a wasteful number, since it uses less digits than its factorization.

25245534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32255.

The product of its digits is 24000, while the sum is 30.

The square root of 25245534 is about 5024.4934072999. The cubic root of 25245534 is about 293.3559179695.

Adding to 25245534 its reverse (43554252), we get a palindrome (68799786).

The spelling of 25245534 in words is "twenty-five million, two hundred forty-five thousand, five hundred thirty-four".