2256157587 has 16 divisors (see below), whose sum is σ = 3128970240. Its totient is φ = 1444466400.

The previous prime is 2256157571. The next prime is 2256157609. The reversal of 2256157587 is 7857516522.

It is not a de Polignac number, because 2256157587 - 2⁴ = 2256157571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2256157087) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 80412 + ... + 104777.

It is an arithmetic number, because the mean of its divisors is an integer number (195560640).

Almost surely, 2^2256157587 is an apocalyptic number.

2256157587 is a deficient number, since it is larger than the sum of its proper divisors (872812653).

2256157587 is a wasteful number, since it uses less digits than its factorization.

2256157587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185354.

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

The square root of 2256157587 is about 47499.0272216179. The cubic root of 2256157587 is about 1311.5649744628.

The spelling of 2256157587 in words is "two billion, two hundred fifty-six million, one hundred fifty-seven thousand, five hundred eighty-seven".