2258563421 has 4 divisors (see below), whose sum is σ = 2377435200. Its totient is φ = 2139691644.

The previous prime is 2258563399. The next prime is 2258563429. The reversal of 2258563421 is 1243658522.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2258563421 - 2⁶ = 2258563357 is a prime.

It is a super-2 number, since 2×2258563421² = 10202217453358446482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2258563429) 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, 59435861 + ... + 59435898.

It is an arithmetic number, because the mean of its divisors is an integer number (594358800).

Almost surely, 2^2258563421 is an apocalyptic number.

It is an amenable number.

2258563421 is a deficient number, since it is larger than the sum of its proper divisors (118871779).

2258563421 is a wasteful number, since it uses less digits than its factorization.

2258563421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118871778.

The product of its digits is 115200, while the sum is 38.

The square root of 2258563421 is about 47524.3455609859. The cubic root of 2258563421 is about 1312.0310008182.

The spelling of 2258563421 in words is "two billion, two hundred fifty-eight million, five hundred sixty-three thousand, four hundred twenty-one".