53012881 has 2 divisors, whose sum is σ = 53012882. Its totient is φ = 53012880.

The previous prime is 53012863. The next prime is 53012893. The reversal of 53012881 is 18821035.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43033600 + 9979281 = 6560^2 + 3159^2 .

It is a cyclic number.

It is not a de Polignac number, because 53012881 - 2⁹ = 53012369 is a prime.

It is a super-2 number, since 2×53012881² = 5620731103840322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53012581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26506440 + 26506441.

It is an arithmetic number, because the mean of its divisors is an integer number (26506441).

Almost surely, 2^53012881 is an apocalyptic number.

It is an amenable number.

53012881 is a deficient number, since it is larger than the sum of its proper divisors (1).

53012881 is an equidigital number, since it uses as much as digits as its factorization.

53012881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 53012881 is about 7280.9945062471. The cubic root of 53012881 is about 375.6590035967.

The spelling of 53012881 in words is "fifty-three million, twelve thousand, eight hundred eighty-one".