25235628740 has 192 divisors, whose sum is σ = 65792176128. Its totient is φ = 7946035200.

The previous prime is 25235628721. The next prime is 25235628757. The reversal of 25235628740 is 4782653252.

It is a happy number.

It is a super-2 number, since 2×25235628740² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25235628691 and 25235628700.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6581864 + ... + 6585696.

It is an arithmetic number, because the mean of its divisors is an integer number (342667584).

Almost surely, 2^25235628740 is an apocalyptic number.

25235628740 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 25235628740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32896088064).

25235628740 is an abundant number, since it is smaller than the sum of its proper divisors (40556547388).

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

25235628740 is a wasteful number, since it uses less digits than its factorization.

25235628740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3958 (or 3956 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 44.

The spelling of 25235628740 in words is "twenty-five billion, two hundred thirty-five million, six hundred twenty-eight thousand, seven hundred forty".