53321502 has 32 divisors (see below), whose sum is σ = 116151840. Its totient is φ = 16220160.

The previous prime is 53321483. The next prime is 53321509. The reversal of 53321502 is 20512335.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53321509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3102 + ... + 10782.

It is an arithmetic number, because the mean of its divisors is an integer number (3629745).

Almost surely, 2^53321502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53321502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58075920).

53321502 is an abundant number, since it is smaller than the sum of its proper divisors (62830338).

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

53321502 is a wasteful number, since it uses less digits than its factorization.

53321502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7788.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 53321502 is about 7302.1573524541. The cubic root of 53321502 is about 376.3865752166.

Adding to 53321502 its reverse (20512335), we get a palindrome (73833837).

The spelling of 53321502 in words is "fifty-three million, three hundred twenty-one thousand, five hundred two".