25252712294978 has 8 divisors (see below), whose sum is σ = 43290363934272. Its totient is φ = 10822590983556.

The previous prime is 25252712294921. The next prime is 25252712295017. The reversal of 25252712294978 is 87949221725252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 901882581950 + ... + 901882581977.

It is an arithmetic number, because the mean of its divisors is an integer number (5411295491784).

Almost surely, 2^{25252712294978} is an apocalyptic number.

25252712294978 is a deficient number, since it is larger than the sum of its proper divisors (18037651639294).

25252712294978 is a wasteful number, since it uses less digits than its factorization.

25252712294978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1803765163936.

The product of its digits is 101606400, while the sum is 65.

The spelling of 25252712294978 in words is "twenty-five trillion, two hundred fifty-two billion, seven hundred twelve million, two hundred ninety-four thousand, nine hundred seventy-eight".