51365466 has 24 divisors (see below), whose sum is σ = 117839124. Its totient is φ = 16114560.

The previous prime is 51365443. The next prime is 51365473. The reversal of 51365466 is 66456315.

It can be written as a sum of positive squares in 2 ways, for example, as 43362225 + 8003241 = 6585^2 + 2829^2 .

It is a super-2 number, since 2×51365466² = 5276822194794312, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51365466.

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, 83625 + ... + 84236.

Almost surely, 2^51365466 is an apocalyptic number.

51365466 is an abundant number, since it is smaller than the sum of its proper divisors (66473658).

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

51365466 is a wasteful number, since it uses less digits than its factorization.

51365466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167886 (or 167883 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 51365466 is about 7166.9704896839. The cubic root of 51365466 is about 371.7266896386.

The spelling of 51365466 in words is "fifty-one million, three hundred sixty-five thousand, four hundred sixty-six".