53312622 has 64 divisors (see below), whose sum is σ = 122093568. Its totient is φ = 15372000.

The previous prime is 53312593. The next prime is 53312641. The reversal of 53312622 is 22621335.

It is a junction number, because it is equal to n+sod(n) for n = 53312592 and 53312601.

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, 145083 + ... + 145449.

It is an arithmetic number, because the mean of its divisors is an integer number (1907712).

Almost surely, 2^53312622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53312622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61046784).

53312622 is an abundant number, since it is smaller than the sum of its proper divisors (68780946).

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

53312622 is a wasteful number, since it uses less digits than its factorization.

53312622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485.

The product of its digits is 2160, while the sum is 24.

The square root of 53312622 is about 7301.5492876512. The cubic root of 53312622 is about 376.3656799666.

Adding to 53312622 its reverse (22621335), we get a palindrome (75933957).

The spelling of 53312622 in words is "fifty-three million, three hundred twelve thousand, six hundred twenty-two".