25122320464401 has 48 divisors (see below), whose sum is σ = 37499381524800. Its totient is φ = 16194737752704.

The previous prime is 25122320464277. The next prime is 25122320464433. The reversal of 25122320464401 is 10446402322152.

25122320464401 is a `hidden beast` number, since 2 + 5 + 1 + 2 + 2 + 3 + 2 + 0 + 4 + 644 + 0 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-25122320464401 is a prime.

It is a super-2 number, since 2×25122320464401² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25122320464201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 99238455 + ... + 99491283.

It is an arithmetic number, because the mean of its divisors is an integer number (781237115100).

Almost surely, 2^{25122320464401} is an apocalyptic number.

It is an amenable number.

25122320464401 is a deficient number, since it is larger than the sum of its proper divisors (12377061060399).

25122320464401 is a wasteful number, since it uses less digits than its factorization.

25122320464401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254718 (or 254715 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

Adding to 25122320464401 its reverse (10446402322152), we get a palindrome (35568722786553).

The spelling of 25122320464401 in words is "twenty-five trillion, one hundred twenty-two billion, three hundred twenty million, four hundred sixty-four thousand, four hundred one".