25919049 has 16 divisors (see below), whose sum is σ = 37517312. Its totient is φ = 15821568.

The previous prime is 25918993. The next prime is 25919053. The reversal of 25919049 is 94091952.

It is not a de Polignac number, because 25919049 - 2¹⁵ = 25886281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25918998 and 25919016.

It is not an unprimeable number, because it can be changed into a prime (25919099) 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, 2337 + ... + 7569.

It is an arithmetic number, because the mean of its divisors is an integer number (2344832).

Almost surely, 2^25919049 is an apocalyptic number.

It is an amenable number.

25919049 is a deficient number, since it is larger than the sum of its proper divisors (11598263).

25919049 is a wasteful number, since it uses less digits than its factorization.

25919049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5376.

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 25919049 is about 5091.0754266658. The cubic root of 25919049 is about 295.9418294808.

The spelling of 25919049 in words is "twenty-five million, nine hundred nineteen thousand, forty-nine".