25778253050 has 48 divisors (see below), whose sum is σ = 53993758464. Its totient is φ = 9071520000.

The previous prime is 25778253031. The next prime is 25778253089. The reversal of 25778253050 is 5035287752.

It is a junction number, because it is equal to n+sod(n) for n = 25778252992 and 25778253010.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 738911 + ... + 773010.

It is an arithmetic number, because the mean of its divisors is an integer number (1124869968).

Almost surely, 2^25778253050 is an apocalyptic number.

25778253050 is an abundant number, since it is smaller than the sum of its proper divisors (28215505414).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25778253050 is a wasteful number, since it uses less digits than its factorization.

25778253050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511975 (or 1511970 counting only the distinct ones).

The product of its (nonzero) digits is 588000, while the sum is 44.

The spelling of 25778253050 in words is "twenty-five billion, seven hundred seventy-eight million, two hundred fifty-three thousand, fifty".