51373337 has 8 divisors (see below), whose sum is σ = 54572616. Its totient is φ = 48193792.

The previous prime is 51373331. The next prime is 51373339. The reversal of 51373337 is 73337315.

It can be written as a sum of positive squares in 4 ways, for example, as 379456 + 50993881 = 616^2 + 7141^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 51373337 - 2⁸ = 51373081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51373331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 623 + ... + 10155.

It is an arithmetic number, because the mean of its divisors is an integer number (6821577).

Almost surely, 2^51373337 is an apocalyptic number.

It is an amenable number.

51373337 is a deficient number, since it is larger than the sum of its proper divisors (3199279).

51373337 is a wasteful number, since it uses less digits than its factorization.

51373337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9867.

The product of its digits is 19845, while the sum is 32.

The square root of 51373337 is about 7167.5195849052. The cubic root of 51373337 is about 371.7456758795.

The spelling of 51373337 in words is "fifty-one million, three hundred seventy-three thousand, three hundred thirty-seven".