25116256316434 has 16 divisors (see below), whose sum is σ = 39636333308376. Its totient is φ = 11920701744000.

The previous prime is 25116256316407. The next prime is 25116256316507. The reversal of 25116256316434 is 43461365261152.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18292275640809 + 6823980675625 = 4276947^2 + 2612275^2 .

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, 4139129517 + ... + 4139135584.

Almost surely, 2^{25116256316434} is an apocalyptic number.

25116256316434 is a deficient number, since it is larger than the sum of its proper divisors (14520076991942).

25116256316434 is a wasteful number, since it uses less digits than its factorization.

25116256316434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8278265181.

The product of its digits is 3110400, while the sum is 49.

The spelling of 25116256316434 in words is "twenty-five trillion, one hundred sixteen billion, two hundred fifty-six million, three hundred sixteen thousand, four hundred thirty-four".