25214625849 has 36 divisors (see below), whose sum is σ = 41275156464. Its totient is φ = 13649994288.

The previous prime is 25214625823. The next prime is 25214625851. The reversal of 25214625849 is 94852641252.

It is not a de Polignac number, because 25214625849 - 2⁷ = 25214625721 is a prime.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 25214625798 and 25214625807.

It is not an unprimeable number, because it can be changed into a prime (25214626849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 184507 + ... + 290640.

It is an arithmetic number, because the mean of its divisors is an integer number (1146532124).

Almost surely, 2^25214625849 is an apocalyptic number.

It is an amenable number.

25214625849 is a deficient number, since it is larger than the sum of its proper divisors (16060530615).

25214625849 is a wasteful number, since it uses less digits than its factorization.

25214625849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475202 (or 475176 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 48.

The spelling of 25214625849 in words is "twenty-five billion, two hundred fourteen million, six hundred twenty-five thousand, eight hundred forty-nine".