25042734 has 24 divisors (see below), whose sum is σ = 57451680. Its totient is φ = 7856448.

The previous prime is 25042733. The next prime is 25042789. The reversal of 25042734 is 43724052.

It is a junction number, because it is equal to n+sod(n) for n = 25042698 and 25042707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25042733) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40614 + ... + 41225.

It is an arithmetic number, because the mean of its divisors is an integer number (2393820).

Almost surely, 2^25042734 is an apocalyptic number.

25042734 is an abundant number, since it is smaller than the sum of its proper divisors (32408946).

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

25042734 is a wasteful number, since it uses less digits than its factorization.

25042734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81864 (or 81861 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 25042734 is about 5004.2715753644. The cubic root of 25042734 is about 292.5682856131.

Adding to 25042734 its reverse (43724052), we get a palindrome (68766786).

The spelling of 25042734 in words is "twenty-five million, forty-two thousand, seven hundred thirty-four".