51340475 has 6 divisors (see below), whose sum is σ = 63662220. Its totient is φ = 41072360.

The previous prime is 51340463. The next prime is 51340481. The reversal of 51340475 is 57404315.

It is not a de Polignac number, because 51340475 - 2²⁴ = 34563259 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1026785 + ... + 1026834.

It is an arithmetic number, because the mean of its divisors is an integer number (10610370).

Almost surely, 2^51340475 is an apocalyptic number.

51340475 is a deficient number, since it is larger than the sum of its proper divisors (12321745).

51340475 is a wasteful number, since it uses less digits than its factorization.

51340475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2053629 (or 2053624 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 51340475 is about 7165.2267933402. The cubic root of 51340475 is about 371.6663940779. Note that the first 3 decimals are identical.

It can be divided in two parts, 51340 and 475, that added together give a palindrome (51815).

The spelling of 51340475 in words is "fifty-one million, three hundred forty thousand, four hundred seventy-five".