53019777058921 has 4 divisors (see below), whose sum is σ = 53023349112912. Its totient is φ = 53016205004932.

The previous prime is 53019777058889. The next prime is 53019777058933. The reversal of 53019777058921 is 12985077791035.

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 53019777058921 - 2⁵ = 53019777058889 is a prime.

It is a super-2 number, since 2×53019777058921² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53019777058981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1786004731 + ... + 1786034416.

It is an arithmetic number, because the mean of its divisors is an integer number (13255837278228).

Almost surely, 2^{53019777058921} is an apocalyptic number.

It is an amenable number.

53019777058921 is a deficient number, since it is larger than the sum of its proper divisors (3572053991).

53019777058921 is a wasteful number, since it uses less digits than its factorization.

53019777058921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3572053990.

The product of its (nonzero) digits is 33339600, while the sum is 64.

The spelling of 53019777058921 in words is "fifty-three trillion, nineteen billion, seven hundred seventy-seven million, fifty-eight thousand, nine hundred twenty-one".