52285545281 has 4 divisors (see below), whose sum is σ = 52361212464. Its totient is φ = 52209878100.

The previous prime is 52285545269. The next prime is 52285545311. The reversal of 52285545281 is 18254558225.

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 52285545281 - 2²² = 52281350977 is a prime.

It is a super-2 number, since 2×52285545281² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52285548281) 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, 37832555 + ... + 37833936.

It is an arithmetic number, because the mean of its divisors is an integer number (13090303116).

Almost surely, 2^52285545281 is an apocalyptic number.

It is an amenable number.

52285545281 is a deficient number, since it is larger than the sum of its proper divisors (75667183).

52285545281 is an equidigital number, since it uses as much as digits as its factorization.

52285545281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75667182.

The product of its digits is 1280000, while the sum is 47.

The spelling of 52285545281 in words is "fifty-two billion, two hundred eighty-five million, five hundred forty-five thousand, two hundred eighty-one".