53310642 has 128 divisors (see below), whose sum is σ = 144322560. Its totient is φ = 12714240.

The previous prime is 53310641. The next prime is 53310679. The reversal of 53310642 is 24601335.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (53310641) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 308068 + ... + 308240.

It is an arithmetic number, because the mean of its divisors is an integer number (1127520).

Almost surely, 2^53310642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53310642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72161280).

53310642 is an abundant number, since it is smaller than the sum of its proper divisors (91011918).

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

53310642 is a wasteful number, since it uses less digits than its factorization.

53310642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248.

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

The square root of 53310642 is about 7301.4136987299. The cubic root of 53310642 is about 376.3610205742.

Adding to 53310642 its reverse (24601335), we get a palindrome (77911977).

It can be divided in two parts, 533 and 10642, that added together give a triangular number (11175 = T₁₄₉).

The spelling of 53310642 in words is "fifty-three million, three hundred ten thousand, six hundred forty-two".