25384534 has 32 divisors (see below), whose sum is σ = 44985600. Its totient is φ = 10517472.

The previous prime is 25384529. The next prime is 25384537. The reversal of 25384534 is 43548352.

It is a self number, because there is not a number n which added to its sum of digits gives 25384534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25384537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89557 + ... + 89839.

It is an arithmetic number, because the mean of its divisors is an integer number (1405800).

Almost surely, 2^25384534 is an apocalyptic number.

25384534 is a deficient number, since it is larger than the sum of its proper divisors (19601066).

25384534 is a wasteful number, since it uses less digits than its factorization.

25384534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484.

The product of its digits is 57600, while the sum is 34.

The square root of 25384534 is about 5038.3066599801. The cubic root of 25384534 is about 293.8933313497.

The spelling of 25384534 in words is "twenty-five million, three hundred eighty-four thousand, five hundred thirty-four".