25964534 has 4 divisors (see below), whose sum is σ = 38946804. Its totient is φ = 12982266.

The previous prime is 25964531. The next prime is 25964557. The reversal of 25964534 is 43546952.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25964531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6491132 + ... + 6491135.

It is an arithmetic number, because the mean of its divisors is an integer number (9736701).

Almost surely, 2^25964534 is an apocalyptic number.

25964534 is a deficient number, since it is larger than the sum of its proper divisors (12982270).

25964534 is a wasteful number, since it uses less digits than its factorization.

25964534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12982269.

The product of its digits is 129600, while the sum is 38.

The square root of 25964534 is about 5095.5405993869. The cubic root of 25964534 is about 296.1148431287.

The spelling of 25964534 in words is "twenty-five million, nine hundred sixty-four thousand, five hundred thirty-four".