53021556463 has 2 divisors, whose sum is σ = 53021556464. Its totient is φ = 53021556462.

The previous prime is 53021556461. The next prime is 53021556473. The reversal of 53021556463 is 36465512035.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53021556463 - 2¹ = 53021556461 is a prime.

It is a super-2 number, since 2×53021556463² (a number of 22 digits) contains 22 as substring.

Together with 53021556461, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53021556461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26510778231 + 26510778232.

It is an arithmetic number, because the mean of its divisors is an integer number (26510778232).

Almost surely, 2^53021556463 is an apocalyptic number.

53021556463 is a deficient number, since it is larger than the sum of its proper divisors (1).

53021556463 is an equidigital number, since it uses as much as digits as its factorization.

53021556463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324000, while the sum is 40.

The spelling of 53021556463 in words is "fifty-three billion, twenty-one million, five hundred fifty-six thousand, four hundred sixty-three".