25049514939 has 32 divisors (see below), whose sum is σ = 35370639360. Its totient is φ = 15743155200.

The previous prime is 25049514923. The next prime is 25049514967. The reversal of 25049514939 is 93941594052.

It is not a de Polignac number, because 25049514939 - 2⁴ = 25049514923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25049514891 and 25049514900.

It is not an unprimeable number, because it can be changed into a prime (25049513939) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2736979 + ... + 2746115.

It is an arithmetic number, because the mean of its divisors is an integer number (1105332480).

Almost surely, 2^25049514939 is an apocalyptic number.

25049514939 is a deficient number, since it is larger than the sum of its proper divisors (10321124421).

25049514939 is a wasteful number, since it uses less digits than its factorization.

25049514939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9931.

The product of its (nonzero) digits is 1749600, while the sum is 51.

The spelling of 25049514939 in words is "twenty-five billion, forty-nine million, five hundred fourteen thousand, nine hundred thirty-nine".