53203315 has 8 divisors (see below), whose sum is σ = 69648048. Its totient is φ = 38693280.

The previous prime is 53203307. The next prime is 53203333. The reversal of 53203315 is 51330235.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53203315 - 2³ = 53203307 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 483612 + ... + 483721.

It is an arithmetic number, because the mean of its divisors is an integer number (8706006).

Almost surely, 2^53203315 is an apocalyptic number.

53203315 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

53203315 is a deficient number, since it is larger than the sum of its proper divisors (16444733).

53203315 is a wasteful number, since it uses less digits than its factorization.

53203315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967349.

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

The square root of 53203315 is about 7294.0602547552. The cubic root of 53203315 is about 376.1082828126.

Subtracting from 53203315 its reverse (51330235), we obtain a triangular number (1873080 = T₁₉₃₅).

The spelling of 53203315 in words is "fifty-three million, two hundred three thousand, three hundred fifteen".