53064821 has 2 divisors, whose sum is σ = 53064822. Its totient is φ = 53064820.

The previous prime is 53064799. The next prime is 53064827. The reversal of 53064821 is 12846035.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40462321 + 12602500 = 6361^2 + 3550^2 .

It is a cyclic number.

It is not a de Polignac number, because 53064821 - 2¹⁰ = 53063797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53064827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26532410 + 26532411.

It is an arithmetic number, because the mean of its divisors is an integer number (26532411).

Almost surely, 2^53064821 is an apocalyptic number.

It is an amenable number.

53064821 is a deficient number, since it is larger than the sum of its proper divisors (1).

53064821 is an equidigital number, since it uses as much as digits as its factorization.

53064821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 53064821 is about 7284.5604534522. The cubic root of 53064821 is about 375.7816490083.

The spelling of 53064821 in words is "fifty-three million, sixty-four thousand, eight hundred twenty-one".