53220236 has 12 divisors (see below), whose sum is σ = 93306528. Its totient is φ = 26561232.

The previous prime is 53220199. The next prime is 53220241. The reversal of 53220236 is 63202235.

53220236 = T₁₂₈ + T₁₂₉ + ... + T₆₈₄.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9716 + ... + 14171.

It is an arithmetic number, because the mean of its divisors is an integer number (7775544).

Almost surely, 2^53220236 is an apocalyptic number.

It is an amenable number.

53220236 is a deficient number, since it is larger than the sum of its proper divisors (40086292).

53220236 is a wasteful number, since it uses less digits than its factorization.

53220236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24448 (or 24446 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 53220236 is about 7295.2200789284. The cubic root of 53220236 is about 376.1481515920.

The spelling of 53220236 in words is "fifty-three million, two hundred twenty thousand, two hundred thirty-six".