25620254352 has 240 divisors, whose sum is σ = 90730478592. Its totient is φ = 6555098880.

The previous prime is 25620254339. The next prime is 25620254353. The reversal of 25620254352 is 25345202652.

25620254352 is a `hidden beast` number, since 2 + 5 + 62 + 0 + 2 + 543 + 52 = 666.

It is a super-2 number, since 2×25620254352² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (25620254353) 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 47 ways as a sum of consecutive naturals, for example, 725653 + ... + 760139.

Almost surely, 2^25620254352 is an apocalyptic number.

25620254352 is a gapful number since it is divisible by the number (22) 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 25620254352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45365239296).

25620254352 is an abundant number, since it is smaller than the sum of its proper divisors (65110224240).

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

25620254352 is a wasteful number, since it uses less digits than its factorization.

25620254352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34586 (or 34577 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

It can be divided in two parts, 25620 and 254352, that added together give a palindrome (279972).

The spelling of 25620254352 in words is "twenty-five billion, six hundred twenty million, two hundred fifty-four thousand, three hundred fifty-two".