25534043033664 has 224 divisors, whose sum is σ = 78808502247552. Its totient is φ = 7210332160000.

The previous prime is 25534043033663. The next prime is 25534043033677. The reversal of 25534043033664 is 46633034043552.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (25534043033663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105634 + ... + 7146974.

It is an arithmetic number, because the mean of its divisors is an integer number (351823670748).

Almost surely, 2^{25534043033664} is an apocalyptic number.

25534043033664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25534043033664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39404251123776).

25534043033664 is an abundant number, since it is smaller than the sum of its proper divisors (53274459213888).

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

25534043033664 is a wasteful number, since it uses less digits than its factorization.

25534043033664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7041485 (or 7041475 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 48.

The spelling of 25534043033664 in words is "twenty-five trillion, five hundred thirty-four billion, forty-three million, thirty-three thousand, six hundred sixty-four".