2258591851 has 4 divisors (see below), whose sum is σ = 2319634912. Its totient is φ = 2197548792.

The previous prime is 2258591849. The next prime is 2258591869. The reversal of 2258591851 is 1581958522.

2258591851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2258591851 - 2¹ = 2258591849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2258591821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30521475 + ... + 30521548.

It is an arithmetic number, because the mean of its divisors is an integer number (579908728).

Almost surely, 2^2258591851 is an apocalyptic number.

2258591851 is a deficient number, since it is larger than the sum of its proper divisors (61043061).

2258591851 is an equidigital number, since it uses as much as digits as its factorization.

2258591851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61043060.

The product of its digits is 288000, while the sum is 46.

The square root of 2258591851 is about 47524.6446698973. The cubic root of 2258591851 is about 1312.0365059230.

The spelling of 2258591851 in words is "two billion, two hundred fifty-eight million, five hundred ninety-one thousand, eight hundred fifty-one".