53221514 has 4 divisors (see below), whose sum is σ = 79832274. Its totient is φ = 26610756.

The previous prime is 53221507. The next prime is 53221523. The reversal of 53221514 is 41512235.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41512235 = 5 ⋅8302447.

It can be written as a sum of positive squares in only one way, i.e., 53217025 + 4489 = 7295^2 + 67^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 53221514.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13305377 + ... + 13305380.

Almost surely, 2^53221514 is an apocalyptic number.

53221514 is a deficient number, since it is larger than the sum of its proper divisors (26610760).

53221514 is a wasteful number, since it uses less digits than its factorization.

53221514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26610759.

The product of its digits is 1200, while the sum is 23.

The square root of 53221514 is about 7295.3076700027. The cubic root of 53221514 is about 376.1511624360.

Adding to 53221514 its reverse (41512235), we get a palindrome (94733749).

It can be divided in two parts, 53221 and 514, that added together give a palindrome (53735).

The spelling of 53221514 in words is "fifty-three million, two hundred twenty-one thousand, five hundred fourteen".