51413930 has 8 divisors (see below), whose sum is σ = 92545092. Its totient is φ = 20565568.

The previous prime is 51413927. The next prime is 51413951. The reversal of 51413930 is 3931415.

It can be written as a sum of positive squares in 2 ways, for example, as 45792289 + 5621641 = 6767^2 + 2371^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 51413930.

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, 2570687 + ... + 2570706.

Almost surely, 2^51413930 is an apocalyptic number.

51413930 is a deficient number, since it is larger than the sum of its proper divisors (41131162).

51413930 is a wasteful number, since it uses less digits than its factorization.

51413930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5141400.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 51413930 is about 7170.3507585055. The cubic root of 51413930 is about 371.8435625803.

The spelling of 51413930 in words is "fifty-one million, four hundred thirteen thousand, nine hundred thirty".