25351929238 has 4 divisors (see below), whose sum is σ = 38027893860. Its totient is φ = 12675964618.

The previous prime is 25351929199. The next prime is 25351929241. The reversal of 25351929238 is 83292915352.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 25351929191 and 25351929200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6337982308 + ... + 6337982311.

It is an arithmetic number, because the mean of its divisors is an integer number (9506973465).

Almost surely, 2^25351929238 is an apocalyptic number.

25351929238 is a deficient number, since it is larger than the sum of its proper divisors (12675964622).

25351929238 is a wasteful number, since it uses less digits than its factorization.

25351929238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12675964621.

The product of its digits is 1166400, while the sum is 49.

The spelling of 25351929238 in words is "twenty-five billion, three hundred fifty-one million, nine hundred twenty-nine thousand, two hundred thirty-eight".