51442337 has 8 divisors (see below), whose sum is σ = 52455720. Its totient is φ = 50434560.

The previous prime is 51442333. The next prime is 51442343. The reversal of 51442337 is 73324415.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 519841 + 50922496 = 721^2 + 7136^2 .

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 51442337 - 2² = 51442333 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51442333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20339 + ... + 22727.

It is an arithmetic number, because the mean of its divisors is an integer number (6556965).

Almost surely, 2^51442337 is an apocalyptic number.

It is an amenable number.

51442337 is a deficient number, since it is larger than the sum of its proper divisors (1013383).

51442337 is a wasteful number, since it uses less digits than its factorization.

51442337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2803.

The product of its digits is 10080, while the sum is 29.

The square root of 51442337 is about 7172.3313504048. The cubic root of 51442337 is about 371.9120330984.

The spelling of 51442337 in words is "fifty-one million, four hundred forty-two thousand, three hundred thirty-seven".