25048649019 has 16 divisors (see below), whose sum is σ = 34275427200. Its totient is φ = 16261976640.

The previous prime is 25048649009. The next prime is 25048649033. The reversal of 25048649019 is 91094684052.

It is not a de Polignac number, because 25048649019 - 2⁵ = 25048648987 is a prime.

It is a super-2 number, since 2×25048649019² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25048649009) 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, 118869 + ... + 253430.

It is an arithmetic number, because the mean of its divisors is an integer number (2142214200).

Almost surely, 2^25048649019 is an apocalyptic number.

25048649019 is a deficient number, since it is larger than the sum of its proper divisors (9226778181).

25048649019 is a wasteful number, since it uses less digits than its factorization.

25048649019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372890.

The product of its (nonzero) digits is 622080, while the sum is 48.

The spelling of 25048649019 in words is "twenty-five billion, forty-eight million, six hundred forty-nine thousand, nineteen".