51650600149 has 4 divisors (see below), whose sum is σ = 54688870764. Its totient is φ = 48612329536.

The previous prime is 51650600147. The next prime is 51650600171. The reversal of 51650600149 is 94100605615.

51650600149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33923009124 + 17727591025 = 184182^2 + 133145^2 .

It is a cyclic number.

It is not a de Polignac number, because 51650600149 - 2¹ = 51650600147 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51650600147) 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, 1519135282 + ... + 1519135315.

It is an arithmetic number, because the mean of its divisors is an integer number (13672217691).

Almost surely, 2^51650600149 is an apocalyptic number.

It is an amenable number.

51650600149 is a deficient number, since it is larger than the sum of its proper divisors (3038270615).

51650600149 is a wasteful number, since it uses less digits than its factorization.

51650600149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3038270614.

The product of its (nonzero) digits is 32400, while the sum is 37.

The spelling of 51650600149 in words is "fifty-one billion, six hundred fifty million, six hundred thousand, one hundred forty-nine".