51343236 has 72 divisors (see below), whose sum is σ = 150410624. Its totient is φ = 14463360.

The previous prime is 51343217. The next prime is 51343241. The reversal of 51343236 is 63234315.

It is a happy number.

It is a super-2 number, since 2×51343236² = 5272255765903392, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17001 + ... + 19791.

Almost surely, 2^51343236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51343236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75205312).

51343236 is an abundant number, since it is smaller than the sum of its proper divisors (99067388).

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

51343236 is a wasteful number, since it uses less digits than its factorization.

51343236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2881 (or 2876 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 51343236 is about 7165.4194573661. The cubic root of 51343236 is about 371.6730564791.

The spelling of 51343236 in words is "fifty-one million, three hundred forty-three thousand, two hundred thirty-six".