25334336040 has 128 divisors (see below), whose sum is σ = 81894032640. Its totient is φ = 6232743936.

The previous prime is 25334335907. The next prime is 25334336059. The reversal of 25334336040 is 4063343352.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25334335992 and 25334336010.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4041949 + ... + 4048211.

It is an arithmetic number, because the mean of its divisors is an integer number (639797130).

Almost surely, 2^25334336040 is an apocalyptic number.

25334336040 is a gapful number since it is divisible by the number (20) 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 25334336040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40947016320).

25334336040 is an abundant number, since it is smaller than the sum of its proper divisors (56559696600).

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

25334336040 is a wasteful number, since it uses less digits than its factorization.

25334336040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8883 (or 8879 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 33.

Adding to 25334336040 its reverse (4063343352), we get a palindrome (29397679392).

The spelling of 25334336040 in words is "twenty-five billion, three hundred thirty-four million, three hundred thirty-six thousand, forty".