51736349 has 4 divisors (see below), whose sum is σ = 59127264. Its totient is φ = 44345436.

The previous prime is 51736343. The next prime is 51736369. The reversal of 51736349 is 94363715.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51736349 - 2⁸ = 51736093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51736343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3695447 + ... + 3695460.

It is an arithmetic number, because the mean of its divisors is an integer number (14781816).

Almost surely, 2^51736349 is an apocalyptic number.

It is an amenable number.

51736349 is a deficient number, since it is larger than the sum of its proper divisors (7390915).

51736349 is an equidigital number, since it uses as much as digits as its factorization.

51736349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7390914.

The product of its digits is 68040, while the sum is 38.

The square root of 51736349 is about 7192.7984123010. The cubic root of 51736349 is about 372.6192258325.

The spelling of 51736349 in words is "fifty-one million, seven hundred thirty-six thousand, three hundred forty-nine".