53321051 has 4 divisors (see below), whose sum is σ = 60938352. Its totient is φ = 45703752.

The previous prime is 53321041. The next prime is 53321069. The reversal of 53321051 is 15012335.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53321051 - 2²² = 49126747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53321041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3808640 + ... + 3808653.

It is an arithmetic number, because the mean of its divisors is an integer number (15234588).

Almost surely, 2^53321051 is an apocalyptic number.

53321051 is a deficient number, since it is larger than the sum of its proper divisors (7617301).

53321051 is an equidigital number, since it uses as much as digits as its factorization.

53321051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7617300.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 53321051 is about 7302.1264711042. The cubic root of 53321051 is about 376.3855140385.

Adding to 53321051 its reverse (15012335), we get a palindrome (68333386).

The spelling of 53321051 in words is "fifty-three million, three hundred twenty-one thousand, fifty-one".