53321951 has 2 divisors, whose sum is σ = 53321952. Its totient is φ = 53321950.

The previous prime is 53321941. The next prime is 53321969. The reversal of 53321951 is 15912335.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53321951 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53321941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26660975 + 26660976.

It is an arithmetic number, because the mean of its divisors is an integer number (26660976).

Almost surely, 2^53321951 is an apocalyptic number.

53321951 is a deficient number, since it is larger than the sum of its proper divisors (1).

53321951 is an equidigital number, since it uses as much as digits as its factorization.

53321951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4050, while the sum is 29.

The square root of 53321951 is about 7302.1880967283. The cubic root of 53321951 is about 376.3876316828.

The spelling of 53321951 in words is "fifty-three million, three hundred twenty-one thousand, nine hundred fifty-one".