2725187556 has 288 divisors, whose sum is σ = 8564441088. Its totient is φ = 655983360.

The previous prime is 2725187539. The next prime is 2725187573. The reversal of 2725187556 is 6557815272.

It is an interprime number because it is at equal distance from previous prime (2725187539) and next prime (2725187573).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12220461 + ... + 12220683.

Almost surely, 2^2725187556 is an apocalyptic number.

2725187556 is a gapful number since it is divisible by the number (26) 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 2725187556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4282220544).

2725187556 is an abundant number, since it is smaller than the sum of its proper divisors (5839253532).

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

2725187556 is a wasteful number, since it uses less digits than its factorization.

2725187556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319 (or 298 counting only the distinct ones).

The product of its digits is 1176000, while the sum is 48.

The square root of 2725187556 is about 52203.3289743097. The cubic root of 2725187556 is about 1396.7932652645.

The spelling of 2725187556 in words is "two billion, seven hundred twenty-five million, one hundred eighty-seven thousand, five hundred fifty-six".