25144394 has 16 divisors (see below), whose sum is σ = 43566336. Its totient is φ = 10756800.

The previous prime is 25144393. The next prime is 25144409. The reversal of 25144394 is 49344152.

It is a self number, because there is not a number n which added to its sum of digits gives 25144394.

It is not an unprimeable number, because it can be changed into a prime (25144393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33242 + ... + 33989.

It is an arithmetic number, because the mean of its divisors is an integer number (2722896).

Almost surely, 2^25144394 is an apocalyptic number.

25144394 is a deficient number, since it is larger than the sum of its proper divisors (18421942).

25144394 is a wasteful number, since it uses less digits than its factorization.

25144394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67261.

The product of its digits is 17280, while the sum is 32.

The square root of 25144394 is about 5014.4186103675. The cubic root of 25144394 is about 292.9636409588.

The spelling of 25144394 in words is "twenty-five million, one hundred forty-four thousand, three hundred ninety-four".