2552561240 has 32 divisors (see below), whose sum is σ = 5744705760. Its totient is φ = 1020768000.

The previous prime is 2552561159. The next prime is 2552561261. The reversal of 2552561240 is 421652552.

It is a junction number, because it is equal to n+sod(n) for n = 2552561197 and 2552561206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289700 + ... + 298380.

It is an arithmetic number, because the mean of its divisors is an integer number (179522055).

Almost surely, 2^2552561240 is an apocalyptic number.

2552561240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2552561240 is an abundant number, since it is smaller than the sum of its proper divisors (3192144520).

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

2552561240 is a wasteful number, since it uses less digits than its factorization.

2552561240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16043 (or 16039 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 2552561240 is about 50522.8783819766. The cubic root of 2552561240 is about 1366.6544613888.

The spelling of 2552561240 in words is "two billion, five hundred fifty-two million, five hundred sixty-one thousand, two hundred forty".