51475797 has 8 divisors (see below), whose sum is σ = 76260480. Its totient is φ = 34317180.

The previous prime is 51475777. The next prime is 51475799. The reversal of 51475797 is 79757415.

51475797 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51475797 - 2⁶ = 51475733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51475799) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 953229 + ... + 953282.

It is an arithmetic number, because the mean of its divisors is an integer number (9532560).

Almost surely, 2^51475797 is an apocalyptic number.

It is an amenable number.

51475797 is a deficient number, since it is larger than the sum of its proper divisors (24784683).

51475797 is a wasteful number, since it uses less digits than its factorization.

51475797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1906520 (or 1906514 counting only the distinct ones).

The product of its digits is 308700, while the sum is 45.

The square root of 51475797 is about 7174.6635461184. The cubic root of 51475797 is about 371.9926507393.

The spelling of 51475797 in words is "fifty-one million, four hundred seventy-five thousand, seven hundred ninety-seven".