52420523261 has 2 divisors, whose sum is σ = 52420523262. Its totient is φ = 52420523260.

The previous prime is 52420523219. The next prime is 52420523327. The reversal of 52420523261 is 16232502425.

52420523261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27765556900 + 24654966361 = 166630^2 + 157019^2 .

It is a cyclic number.

It is not a de Polignac number, because 52420523261 - 2¹⁰ = 52420522237 is a prime.

It is a super-2 number, since 2×52420523261² (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 (52420523161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26210261630 + 26210261631.

It is an arithmetic number, because the mean of its divisors is an integer number (26210261631).

Almost surely, 2^52420523261 is an apocalyptic number.

It is an amenable number.

52420523261 is a deficient number, since it is larger than the sum of its proper divisors (1).

52420523261 is an equidigital number, since it uses as much as digits as its factorization.

52420523261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 32.

The spelling of 52420523261 in words is "fifty-two billion, four hundred twenty million, five hundred twenty-three thousand, two hundred sixty-one".