25330054405 has 16 divisors (see below), whose sum is σ = 31978994544. Its totient is φ = 19235473920.

The previous prime is 25330054391. The next prime is 25330054429. The reversal of 25330054405 is 50445003352.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 321162241 + 25008892164 = 17921^2 + 158142^2 .

It is a de Polignac number, because none of the positive numbers 2^k-25330054405 is a prime.

It is a super-2 number, since 2×25330054405² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1662162 + ... + 1677331.

It is an arithmetic number, because the mean of its divisors is an integer number (1998687159).

Almost surely, 2^25330054405 is an apocalyptic number.

It is an amenable number.

25330054405 is a deficient number, since it is larger than the sum of its proper divisors (6648940139).

25330054405 is a wasteful number, since it uses less digits than its factorization.

25330054405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3339576.

The product of its (nonzero) digits is 36000, while the sum is 31.

Adding to 25330054405 its reverse (50445003352), we get a palindrome (75775057757).

The spelling of 25330054405 in words is "twenty-five billion, three hundred thirty million, fifty-four thousand, four hundred five".