25311243404 has 12 divisors (see below), whose sum is σ = 44300789064. Its totient is φ = 12653875104.

The previous prime is 25311243323. The next prime is 25311243431. The reversal of 25311243404 is 40434211352.

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, 403769 + ... + 462224.

It is an arithmetic number, because the mean of its divisors is an integer number (3691732422).

Almost surely, 2^25311243404 is an apocalyptic number.

It is an amenable number.

25311243404 is a deficient number, since it is larger than the sum of its proper divisors (18989545660).

25311243404 is a wasteful number, since it uses less digits than its factorization.

25311243404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873304 (or 873302 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 25311243404 its reverse (40434211352), we get a palindrome (65745454756).

The spelling of 25311243404 in words is "twenty-five billion, three hundred eleven million, two hundred forty-three thousand, four hundred four".