25949546336 has 48 divisors (see below), whose sum is σ = 58404001824. Its totient is φ = 11117896704.

The previous prime is 25949546333. The next prime is 25949546341. The reversal of 25949546336 is 63364594952.

It is a happy number.

It is a super-2 number, since 2×25949546336² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25949546333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 820676 + ... + 851708.

It is an arithmetic number, because the mean of its divisors is an integer number (1216750038).

Almost surely, 2^25949546336 is an apocalyptic number.

It is an amenable number.

25949546336 is an abundant number, since it is smaller than the sum of its proper divisors (32454455488).

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

25949546336 is a wasteful number, since it uses less digits than its factorization.

25949546336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34783 (or 34775 counting only the distinct ones).

The product of its digits is 20995200, while the sum is 56.

The spelling of 25949546336 in words is "twenty-five billion, nine hundred forty-nine million, five hundred forty-six thousand, three hundred thirty-six".