51340435 has 4 divisors (see below), whose sum is σ = 61608528. Its totient is φ = 41072344.

The previous prime is 51340381. The next prime is 51340463. The reversal of 51340435 is 53404315.

51340435 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51340435 - 2⁹ = 51339923 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5134039 + ... + 5134048.

It is an arithmetic number, because the mean of its divisors is an integer number (15402132).

Almost surely, 2^51340435 is an apocalyptic number.

51340435 is a deficient number, since it is larger than the sum of its proper divisors (10268093).

51340435 is a wasteful number, since it uses less digits than its factorization.

51340435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10268092.

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

The square root of 51340435 is about 7165.2240020812. The cubic root of 51340435 is about 371.6662975546. Note that the first 3 decimals are identical.

The spelling of 51340435 in words is "fifty-one million, three hundred forty thousand, four hundred thirty-five".