53503312 has 10 divisors (see below), whose sum is σ = 103662698. Its totient is φ = 26751648.

The previous prime is 53503217. The next prime is 53503327. The reversal of 53503312 is 21330535.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 52649536 + 853776 = 7256^2 + 924^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1671963 + ... + 1671994.

Almost surely, 2^53503312 is an apocalyptic number.

It is an amenable number.

53503312 is a deficient number, since it is larger than the sum of its proper divisors (50159386).

53503312 is a wasteful number, since it uses less digits than its factorization.

53503312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3343965 (or 3343959 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 53503312 is about 7314.5958193191. The cubic root of 53503312 is about 376.8138775968.

Adding to 53503312 its reverse (21330535), we get a palindrome (74833847).

The spelling of 53503312 in words is "fifty-three million, five hundred three thousand, three hundred twelve".