51454022533 has 4 divisors (see below), whose sum is σ = 51490081440. Its totient is φ = 51417963628.

The previous prime is 51454022527. The next prime is 51454022537. The reversal of 51454022533 is 33522045415.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33522045415 = 5 ⋅6704409083.

It is a cyclic number.

It is not a de Polignac number, because 51454022533 - 2²⁵ = 51420468101 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 (51454022537) 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, 18027313 + ... + 18030166.

It is an arithmetic number, because the mean of its divisors is an integer number (12872520360).

Almost surely, 2^51454022533 is an apocalyptic number.

It is an amenable number.

51454022533 is a deficient number, since it is larger than the sum of its proper divisors (36058907).

51454022533 is a wasteful number, since it uses less digits than its factorization.

51454022533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36058906.

The product of its (nonzero) digits is 72000, while the sum is 34.

Adding to 51454022533 its reverse (33522045415), we get a palindrome (84976067948).

The spelling of 51454022533 in words is "fifty-one billion, four hundred fifty-four million, twenty-two thousand, five hundred thirty-three".