2488891556 has 6 divisors (see below), whose sum is σ = 4355560230. Its totient is φ = 1244445776.

The previous prime is 2488891553. The next prime is 2488891609. The reversal of 2488891556 is 6551988842.

It can be written as a sum of positive squares in only one way, i.e., 2461747456 + 27144100 = 49616^2 + 5210^2 .

It is a super-2 number, since 2×2488891556² = 12389162355056202272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2488891553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311111441 + ... + 311111448.

It is an arithmetic number, because the mean of its divisors is an integer number (725926705).

Almost surely, 2^2488891556 is an apocalyptic number.

It is an amenable number.

2488891556 is a deficient number, since it is larger than the sum of its proper divisors (1866668674).

2488891556 is a wasteful number, since it uses less digits than its factorization.

2488891556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622222893 (or 622222891 counting only the distinct ones).

The product of its digits is 5529600, while the sum is 56.

The square root of 2488891556 is about 49888.7918875573. The cubic root of 2488891556 is about 1355.1956264986.

The spelling of 2488891556 in words is "two billion, four hundred eighty-eight million, eight hundred ninety-one thousand, five hundred fifty-six".