51959322 has 24 divisors (see below), whose sum is σ = 115622676. Its totient is φ = 16851456.

The previous prime is 51959269. The next prime is 51959333. The reversal of 51959322 is 22395915.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 50680161 + 1279161 = 7119^2 + 1131^2 .

It is a super-2 number, since 2×51959322² = 5399542285399368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38343 + ... + 39674.

Almost surely, 2^51959322 is an apocalyptic number.

51959322 is an abundant number, since it is smaller than the sum of its proper divisors (63663354).

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

51959322 is a wasteful number, since it uses less digits than its factorization.

51959322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78062 (or 78059 counting only the distinct ones).

The product of its digits is 24300, while the sum is 36.

The square root of 51959322 is about 7208.2814872895. The cubic root of 51959322 is about 373.1537626708.

The spelling of 51959322 in words is "fifty-one million, nine hundred fifty-nine thousand, three hundred twenty-two".