25220783276 has 54 divisors (see below), whose sum is σ = 48163873212. Its totient is φ = 11550633120.

The previous prime is 25220783257. The next prime is 25220783303. The reversal of 25220783276 is 67238702252.

It is a super-2 number, since 2×25220783276² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13060031 + ... + 13061961.

It is an arithmetic number, because the mean of its divisors is an integer number (891923578).

Almost surely, 2^25220783276 is an apocalyptic number.

25220783276 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

25220783276 is a deficient number, since it is larger than the sum of its proper divisors (22943089936).

25220783276 is a wasteful number, since it uses less digits than its factorization.

25220783276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2239 (or 2085 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 44.

The spelling of 25220783276 in words is "twenty-five billion, two hundred twenty million, seven hundred eighty-three thousand, two hundred seventy-six".