25555027740 has 96 divisors (see below), whose sum is σ = 82167402240. Its totient is φ = 5869094400.

The previous prime is 25555027739. The next prime is 25555027763. The reversal of 25555027740 is 4772055552.

It is a junction number, because it is equal to n+sod(n) for n = 25555027692 and 25555027701.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1006401 + ... + 1031480.

It is an arithmetic number, because the mean of its divisors is an integer number (855910440).

Almost surely, 2^25555027740 is an apocalyptic number.

25555027740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25555027740 is an abundant number, since it is smaller than the sum of its proper divisors (56612374500).

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

25555027740 is a wasteful number, since it uses less digits than its factorization.

25555027740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2037923 (or 2037921 counting only the distinct ones).

The product of its (nonzero) digits is 490000, while the sum is 42.

The spelling of 25555027740 in words is "twenty-five billion, five hundred fifty-five million, twenty-seven thousand, seven hundred forty".