2552775780 has 96 divisors (see below), whose sum is σ = 7727448960. Its totient is φ = 627471360.

The previous prime is 2552775751. The next prime is 2552775809. The reversal of 2552775780 is 875772552.

It is an interprime number because it is at equal distance from previous prime (2552775751) and next prime (2552775809).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11920 + ... + 72440.

It is an arithmetic number, because the mean of its divisors is an integer number (80494260).

Almost surely, 2^2552775780 is an apocalyptic number.

2552775780 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 2552775780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3863724480).

2552775780 is an abundant number, since it is smaller than the sum of its proper divisors (5174673180).

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

2552775780 is a wasteful number, since it uses less digits than its factorization.

2552775780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60589 (or 60587 counting only the distinct ones).

The product of its (nonzero) digits is 1372000, while the sum is 48.

The square root of 2552775780 is about 50525.0015338941. The cubic root of 2552775780 is about 1366.6927489239.

The spelling of 2552775780 in words is "two billion, five hundred fifty-two million, seven hundred seventy-five thousand, seven hundred eighty".