53015214 has 64 divisors (see below), whose sum is σ = 131507712. Its totient is φ = 13900800.

The previous prime is 53015167. The next prime is 53015273. The reversal of 53015214 is 41251035.

It is a super-2 number, since 2×53015214² = 5621225830931592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28369 + ... + 30179.

It is an arithmetic number, because the mean of its divisors is an integer number (2054808).

Almost surely, 2^53015214 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53015214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65753856).

53015214 is an abundant number, since it is smaller than the sum of its proper divisors (78492498).

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

53015214 is a wasteful number, since it uses less digits than its factorization.

53015214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 53015214 is about 7281.1547161147. The cubic root of 53015214 is about 375.6645142046.

Adding to 53015214 its reverse (41251035), we get a palindrome (94266249).

The spelling of 53015214 in words is "fifty-three million, fifteen thousand, two hundred fourteen".