2569552540 has 24 divisors (see below), whose sum is σ = 5582132640. Its totient is φ = 992378688.

The previous prime is 2569552523. The next prime is 2569552541. The reversal of 2569552540 is 452559652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2569552541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2214552 + ... + 2215711.

It is an arithmetic number, because the mean of its divisors is an integer number (232588860).

Almost surely, 2^2569552540 is an apocalyptic number.

2569552540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2569552540 is an abundant number, since it is smaller than the sum of its proper divisors (3012580100).

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

2569552540 is a wasteful number, since it uses less digits than its factorization.

2569552540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4430301 (or 4430299 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 43.

The square root of 2569552540 is about 50690.7539892632. The cubic root of 2569552540 is about 1369.6801675830.

The spelling of 2569552540 in words is "two billion, five hundred sixty-nine million, five hundred fifty-two thousand, five hundred forty".