53021214 has 24 divisors (see below), whose sum is σ = 116455872. Its totient is φ = 17431200.

The previous prime is 53021201. The next prime is 53021219. The reversal of 53021214 is 41212035.

It is a super-2 number, since 2×53021214² = 5622498268067592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53021219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18862 + ... + 21489.

It is an arithmetic number, because the mean of its divisors is an integer number (4852328).

Almost surely, 2^53021214 is an apocalyptic number.

53021214 is an abundant number, since it is smaller than the sum of its proper divisors (63434658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53021214 is a wasteful number, since it uses less digits than its factorization.

53021214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40432 (or 40429 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 53021214 is about 7281.5667270169. The cubic root of 53021214 is about 375.6786856212.

Adding to 53021214 its reverse (41212035), we get a palindrome (94233249).

It can be divided in two parts, 53021 and 214, that added together give a palindrome (53235).

The spelling of 53021214 in words is "fifty-three million, twenty-one thousand, two hundred fourteen".