51434305 has 12 divisors (see below), whose sum is σ = 66835260. Its totient is φ = 37981632.

The previous prime is 51434303. The next prime is 51434423. The reversal of 51434305 is 50343415.

It can be written as a sum of positive squares in 6 ways, for example, as 5574321 + 45859984 = 2361^2 + 6772^2 .

It is not a de Polignac number, because 51434305 - 2¹ = 51434303 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51434305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51434303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29590 + ... + 31279.

It is an arithmetic number, because the mean of its divisors is an integer number (5569605).

Almost surely, 2^51434305 is an apocalyptic number.

It is an amenable number.

51434305 is a deficient number, since it is larger than the sum of its proper divisors (15400955).

51434305 is a wasteful number, since it uses less digits than its factorization.

51434305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60900 (or 60887 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 51434305 is about 7171.7713990339. The cubic root of 51434305 is about 371.8926758070.

The spelling of 51434305 in words is "fifty-one million, four hundred thirty-four thousand, three hundred five".