25843310516 has 6 divisors (see below), whose sum is σ = 45225793410. Its totient is φ = 12921655256.

The previous prime is 25843310491. The next prime is 25843310533. The reversal of 25843310516 is 61501334852.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12995088016 + 12848222500 = 113996^2 + 113350^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25843310516.

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, 3230413811 + ... + 3230413818.

It is an arithmetic number, because the mean of its divisors is an integer number (7537632235).

Almost surely, 2^25843310516 is an apocalyptic number.

It is an amenable number.

25843310516 is a deficient number, since it is larger than the sum of its proper divisors (19382482894).

25843310516 is a wasteful number, since it uses less digits than its factorization.

25843310516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6460827633 (or 6460827631 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 25843310516 in words is "twenty-five billion, eight hundred forty-three million, three hundred ten thousand, five hundred sixteen".