25457300005 has 16 divisors (see below), whose sum is σ = 32181652800. Its totient is φ = 19278915840.

The previous prime is 25457299957. The next prime is 25457300009. The reversal of 25457300005 is 50000375452.

It is not a de Polignac number, because 25457300005 - 2¹⁹ = 25456775717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25457300005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25457300009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18861 + ... + 226429.

It is an arithmetic number, because the mean of its divisors is an integer number (2011353300).

Almost surely, 2^25457300005 is an apocalyptic number.

It is an amenable number.

25457300005 is a deficient number, since it is larger than the sum of its proper divisors (6724352795).

25457300005 is a wasteful number, since it uses less digits than its factorization.

25457300005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208884.

The product of its (nonzero) digits is 21000, while the sum is 31.

Adding to 25457300005 its reverse (50000375452), we get a palindrome (75457675457).

The spelling of 25457300005 in words is "twenty-five billion, four hundred fifty-seven million, three hundred thousand, five".