51207497 has 8 divisors (see below), whose sum is σ = 56697312. Its totient is φ = 45856800.

The previous prime is 51207479. The next prime is 51207509. The reversal of 51207497 is 79470215.

51207497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 51207497 - 2⁶ = 51207433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51207427) 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, 34004 + ... + 35477.

It is an arithmetic number, because the mean of its divisors is an integer number (7087164).

Almost surely, 2^51207497 is an apocalyptic number.

It is an amenable number.

51207497 is a deficient number, since it is larger than the sum of its proper divisors (5489815).

51207497 is a wasteful number, since it uses less digits than its factorization.

51207497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69559.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 51207497 is about 7155.9413776246. The cubic root of 51207497 is about 371.3452297584.

The spelling of 51207497 in words is "fifty-one million, two hundred seven thousand, four hundred ninety-seven".