25587373412 has 6 divisors (see below), whose sum is σ = 44777903478. Its totient is φ = 12793686704.

The previous prime is 25587373369. The next prime is 25587373453. The reversal of 25587373412 is 21437378552.

It can be written as a sum of positive squares in only one way, i.e., 13198792996 + 12388580416 = 114886^2 + 111304^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3198421673 + ... + 3198421680.

It is an arithmetic number, because the mean of its divisors is an integer number (7462983913).

Almost surely, 2^25587373412 is an apocalyptic number.

It is an amenable number.

25587373412 is a deficient number, since it is larger than the sum of its proper divisors (19190530066).

25587373412 is a wasteful number, since it uses less digits than its factorization.

25587373412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6396843357 (or 6396843355 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 47.

The spelling of 25587373412 in words is "twenty-five billion, five hundred eighty-seven million, three hundred seventy-three thousand, four hundred twelve".