51067849 has 12 divisors (see below), whose sum is σ = 59624964. Its totient is φ = 43610784.

The previous prime is 51067831. The next prime is 51067853. The reversal of 51067849 is 94876015.

It can be written as a sum of positive squares in 2 ways, for example, as 28676025 + 22391824 = 5355^2 + 4732^2 .

It is not a de Polignac number, because 51067849 - 2⁵ = 51067817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51067879) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12579 + ... + 16135.

It is an arithmetic number, because the mean of its divisors is an integer number (4968747).

Almost surely, 2^51067849 is an apocalyptic number.

It is an amenable number.

51067849 is a deficient number, since it is larger than the sum of its proper divisors (8557115).

51067849 is a wasteful number, since it uses less digits than its factorization.

51067849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3864 (or 3857 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 51067849 is about 7146.1772298202. The cubic root of 51067849 is about 371.0073571580.

The spelling of 51067849 in words is "fifty-one million, sixty-seven thousand, eight hundred forty-nine".