25140834 has 32 divisors (see below), whose sum is σ = 57383040. Its totient is φ = 8153136.

The previous prime is 25140833. The next prime is 25140839. The reversal of 25140834 is 43804152.

25140834 is a `hidden beast` number, since 251 + 408 + 3 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 25140798 and 25140807.

It is not an unprimeable number, because it can be changed into a prime (25140833) 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, 4294 + ... + 8289.

It is an arithmetic number, because the mean of its divisors is an integer number (1793220).

Almost surely, 2^25140834 is an apocalyptic number.

25140834 is an abundant number, since it is smaller than the sum of its proper divisors (32242206).

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

25140834 is a wasteful number, since it uses less digits than its factorization.

25140834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12631 (or 12625 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 25140834 is about 5014.0636214552. The cubic root of 25140834 is about 292.9498141553.

Adding to 25140834 its reverse (43804152), we get a palindrome (68944986).

The spelling of 25140834 in words is "twenty-five million, one hundred forty thousand, eight hundred thirty-four".