25278332332 has 24 divisors (see below), whose sum is σ = 48262717440. Its totient is φ = 11489178960.

The previous prime is 25278332329. The next prime is 25278332369. The reversal of 25278332332 is 23323387252.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 878469 + ... + 906787.

It is an arithmetic number, because the mean of its divisors is an integer number (2010946560).

Almost surely, 2^25278332332 is an apocalyptic number.

25278332332 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25278332332 is a deficient number, since it is larger than the sum of its proper divisors (22984385108).

25278332332 is a wasteful number, since it uses less digits than its factorization.

25278332332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48621 (or 48619 counting only the distinct ones).

The product of its digits is 362880, while the sum is 40.

The spelling of 25278332332 in words is "twenty-five billion, two hundred seventy-eight million, three hundred thirty-two thousand, three hundred thirty-two".