51343227 has 24 divisors (see below), whose sum is σ = 82830384. Its totient is φ = 31593888.

The previous prime is 51343217. The next prime is 51343241. The reversal of 51343227 is 72234315.

It is not a de Polignac number, because 51343227 - 2¹⁸ = 51081083 is a prime.

It is a super-2 number, since 2×51343227² = 5272253917547058, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 51343227.

It is not an unprimeable number, because it can be changed into a prime (51343217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4968 + ... + 11285.

It is an arithmetic number, because the mean of its divisors is an integer number (3451266).

Almost surely, 2^51343227 is an apocalyptic number.

51343227 is a deficient number, since it is larger than the sum of its proper divisors (31487157).

51343227 is a wasteful number, since it uses less digits than its factorization.

51343227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16281 (or 16269 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 51343227 is about 7165.4188293498. The cubic root of 51343227 is about 371.6730347621.

The spelling of 51343227 in words is "fifty-one million, three hundred forty-three thousand, two hundred twenty-seven".