52066451261 has 4 divisors (see below), whose sum is σ = 56799765024. Its totient is φ = 47333137500.

The previous prime is 52066451257. The next prime is 52066451303. The reversal of 52066451261 is 16215466025.

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 not a de Polignac number, because 52066451261 - 2² = 52066451257 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 (52066451221) 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, 2366656865 + ... + 2366656886.

It is an arithmetic number, because the mean of its divisors is an integer number (14199941256).

Almost surely, 2^52066451261 is an apocalyptic number.

It is an amenable number.

52066451261 is a deficient number, since it is larger than the sum of its proper divisors (4733313763).

52066451261 is a wasteful number, since it uses less digits than its factorization.

52066451261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4733313762.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 52066451261 in words is "fifty-two billion, sixty-six million, four hundred fifty-one thousand, two hundred sixty-one".