2256151511 has 4 divisors (see below), whose sum is σ = 2328930624. Its totient is φ = 2183372400.

The previous prime is 2256151493. The next prime is 2256151519. The reversal of 2256151511 is 1151516522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2256151511 - 2¹⁰ = 2256150487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2256151519) 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 3 ways as a sum of consecutive naturals, for example, 36389510 + ... + 36389571.

It is an arithmetic number, because the mean of its divisors is an integer number (582232656).

Almost surely, 2^2256151511 is an apocalyptic number.

2256151511 is a deficient number, since it is larger than the sum of its proper divisors (72779113).

2256151511 is an equidigital number, since it uses as much as digits as its factorization.

2256151511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72779112.

The product of its digits is 3000, while the sum is 29.

The square root of 2256151511 is about 47498.9632623703. The cubic root of 2256151511 is about 1311.5637970811.

The spelling of 2256151511 in words is "two billion, two hundred fifty-six million, one hundred fifty-one thousand, five hundred eleven".