51412266 has 48 divisors (see below), whose sum is σ = 117002880. Its totient is φ = 16733880.

The previous prime is 51412261. The next prime is 51412297. The reversal of 51412266 is 66221415.

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

It is not an unprimeable number, because it can be changed into a prime (51412261) 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, 119071 + ... + 119501.

It is an arithmetic number, because the mean of its divisors is an integer number (2437560).

Almost surely, 2^51412266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51412266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58501440).

51412266 is an abundant number, since it is smaller than the sum of its proper divisors (65590614).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51412266 is a wasteful number, since it uses less digits than its factorization.

51412266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536 (or 483 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 51412266 is about 7170.2347241914. The cubic root of 51412266 is about 371.8395509933.

The spelling of 51412266 in words is "fifty-one million, four hundred twelve thousand, two hundred sixty-six".