51343472 has 20 divisors (see below), whose sum is σ = 104714280. Its totient is φ = 24320448.

The previous prime is 51343441. The next prime is 51343483. The reversal of 51343472 is 27434315.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84143 + ... + 84750.

It is an arithmetic number, because the mean of its divisors is an integer number (5235714).

Almost surely, 2^51343472 is an apocalyptic number.

It is an amenable number.

51343472 is an abundant number, since it is smaller than the sum of its proper divisors (53370808).

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

51343472 is a wasteful number, since it uses less digits than its factorization.

51343472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168920 (or 168914 counting only the distinct ones).

The product of its digits is 10080, while the sum is 29.

The square root of 51343472 is about 7165.4359253293. The cubic root of 51343472 is about 371.6736259452.

Adding to 51343472 its reverse (27434315), we get a palindrome (78777787).

It can be divided in two parts, 51343 and 472, that added together give a palindrome (51815).

The spelling of 51343472 in words is "fifty-one million, three hundred forty-three thousand, four hundred seventy-two".