2551215355040 has 96 divisors (see below), whose sum is σ = 6673315045824. Its totient is φ = 913868144640.

The previous prime is 2551215355021. The next prime is 2551215355097. The reversal of 2551215355040 is 405535121552.

It is a junction number, because it is equal to n+sod(n) for n = 2551215354985 and 2551215355003.

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 15 ways as a sum of consecutive naturals, for example, 10699649 + ... + 10935488.

It is an arithmetic number, because the mean of its divisors is an integer number (69513698394).

Almost surely, 2^{2551215355040} is an apocalyptic number.

2551215355040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2551215355040 is an abundant number, since it is smaller than the sum of its proper divisors (4122099690784).

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

2551215355040 is a wasteful number, since it uses less digits than its factorization.

2551215355040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21635230 (or 21635222 counting only the distinct ones).

The product of its (nonzero) digits is 150000, while the sum is 38.

The spelling of 2551215355040 in words is "two trillion, five hundred fifty-one billion, two hundred fifteen million, three hundred fifty-five thousand, forty".