51496849 has 4 divisors (see below), whose sum is σ = 51902464. Its totient is φ = 51091236.

The previous prime is 51496831. The next prime is 51496883. The reversal of 51496849 is 94869415.

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 51496849 - 2¹⁵ = 51464081 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51496799 and 51496808.

It is not an unprimeable number, because it can be changed into a prime (58496849) 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, 202617 + ... + 202870.

It is an arithmetic number, because the mean of its divisors is an integer number (12975616).

Almost surely, 2^51496849 is an apocalyptic number.

It is an amenable number.

51496849 is a deficient number, since it is larger than the sum of its proper divisors (405615).

51496849 is a wasteful number, since it uses less digits than its factorization.

51496849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405614.

The product of its digits is 311040, while the sum is 46.

The square root of 51496849 is about 7176.1305032726. The cubic root of 51496849 is about 372.0433549693.

The spelling of 51496849 in words is "fifty-one million, four hundred ninety-six thousand, eight hundred forty-nine".