25312054005 has 48 divisors (see below), whose sum is σ = 50964011904. Its totient is φ = 11381523840.

The previous prime is 25312053971. The next prime is 25312054007. The reversal of 25312054005 is 50045021352.

It is a happy number.

25312054005 is a `hidden beast` number, since 2 + 53 + 1 + 205 + 400 + 5 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-25312054005 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25312054005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25312054007) 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, 639439 + ... + 677868.

It is an arithmetic number, because the mean of its divisors is an integer number (1061750248).

Almost surely, 2^25312054005 is an apocalyptic number.

It is an amenable number.

25312054005 is an abundant number, since it is smaller than the sum of its proper divisors (25651957899).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25312054005 is a wasteful number, since it uses less digits than its factorization.

25312054005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1317386 (or 1317383 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

Adding to 25312054005 its reverse (50045021352), we get a palindrome (75357075357).

The spelling of 25312054005 in words is "twenty-five billion, three hundred twelve million, fifty-four thousand, five".