53316550 has 48 divisors (see below), whose sum is σ = 113921280. Its totient is φ = 18185760.

The previous prime is 53316533. The next prime is 53316563. The reversal of 53316550 is 5561335.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121231 + ... + 121669.

It is an arithmetic number, because the mean of its divisors is an integer number (2373360).

Almost surely, 2^53316550 is an apocalyptic number.

53316550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53316550 is an abundant number, since it is smaller than the sum of its proper divisors (60604730).

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

53316550 is a wasteful number, since it uses less digits than its factorization.

53316550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805 (or 800 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 28.

The square root of 53316550 is about 7301.8182667059. The cubic root of 53316550 is about 376.3749231066.

Adding to 53316550 its reverse (5561335), we get a palindrome (58877885).

It can be divided in two parts, 5331 and 6550, that added together give a square (11881 = 109²).

The spelling of 53316550 in words is "fifty-three million, three hundred sixteen thousand, five hundred fifty".