52012701421 has 2 divisors, whose sum is σ = 52012701422. Its totient is φ = 52012701420.

The previous prime is 52012701359. The next prime is 52012701439. The reversal of 52012701421 is 12410721025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45254052900 + 6758648521 = 212730^2 + 82211^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52012701421 is a prime.

It is a super-2 number, since 2×52012701421² (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 (52012701451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26006350710 + 26006350711.

It is an arithmetic number, because the mean of its divisors is an integer number (26006350711).

Almost surely, 2^52012701421 is an apocalyptic number.

It is an amenable number.

52012701421 is a deficient number, since it is larger than the sum of its proper divisors (1).

52012701421 is an equidigital number, since it uses as much as digits as its factorization.

52012701421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 25.

The spelling of 52012701421 in words is "fifty-two billion, twelve million, seven hundred one thousand, four hundred twenty-one".