25216057963 has 4 divisors (see below), whose sum is σ = 25226062888. Its totient is φ = 25206053040.

The previous prime is 25216057961. The next prime is 25216058003. The reversal of 25216057963 is 36975061252.

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

It is a cyclic number.

It is not a de Polignac number, because 25216057963 - 2¹ = 25216057961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25216057961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4998681 + ... + 5003722.

It is an arithmetic number, because the mean of its divisors is an integer number (6306515722).

Almost surely, 2^25216057963 is an apocalyptic number.

25216057963 is a deficient number, since it is larger than the sum of its proper divisors (10004925).

25216057963 is a wasteful number, since it uses less digits than its factorization.

25216057963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10004924.

The product of its (nonzero) digits is 680400, while the sum is 46.

The spelling of 25216057963 in words is "twenty-five billion, two hundred sixteen million, fifty-seven thousand, nine hundred sixty-three".