51584941019 has 4 divisors (see below), whose sum is σ = 51593011344. Its totient is φ = 51576870696.

The previous prime is 51584941003. The next prime is 51584941061. The reversal of 51584941019 is 91014948515.

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

It is a cyclic number.

It is not a de Polignac number, because 51584941019 - 2⁴ = 51584941003 is a prime.

It is a super-2 number, since 2×51584941019² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51584941619) 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, 4025567 + ... + 4038360.

It is an arithmetic number, because the mean of its divisors is an integer number (12898252836).

Almost surely, 2^51584941019 is an apocalyptic number.

51584941019 is a deficient number, since it is larger than the sum of its proper divisors (8070325).

51584941019 is an equidigital number, since it uses as much as digits as its factorization.

51584941019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8070324.

The product of its (nonzero) digits is 259200, while the sum is 47.

The spelling of 51584941019 in words is "fifty-one billion, five hundred eighty-four million, nine hundred forty-one thousand, nineteen".