52485858421 has 2 divisors, whose sum is σ = 52485858422. Its totient is φ = 52485858420.

The previous prime is 52485858413. The next prime is 52485858431. The reversal of 52485858421 is 12485858425.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39223802500 + 13262055921 = 198050^2 + 115161^2 .

It is a cyclic number.

It is not a de Polignac number, because 52485858421 - 2³ = 52485858413 is a prime.

It is a super-2 number, since 2×52485858421² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52485858431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26242929210 + 26242929211.

It is an arithmetic number, because the mean of its divisors is an integer number (26242929211).

Almost surely, 2^52485858421 is an apocalyptic number.

It is an amenable number.

52485858421 is a deficient number, since it is larger than the sum of its proper divisors (1).

52485858421 is an equidigital number, since it uses as much as digits as its factorization.

52485858421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4096000, while the sum is 52.

The spelling of 52485858421 in words is "fifty-two billion, four hundred eighty-five million, eight hundred fifty-eight thousand, four hundred twenty-one".