53215436 has 12 divisors (see below), whose sum is σ = 93179520. Its totient is φ = 26592720.

The previous prime is 53215433. The next prime is 53215439. The reversal of 53215436 is 63451235.

It is an interprime number because it is at equal distance from previous prime (53215433) and next prime (53215439).

It is a junction number, because it is equal to n+sod(n) for n = 53215399 and 53215408.

It is not an unprimeable number, because it can be changed into a prime (53215433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9206 + ... + 13826.

It is an arithmetic number, because the mean of its divisors is an integer number (7764960).

Almost surely, 2^53215436 is an apocalyptic number.

It is an amenable number.

53215436 is a deficient number, since it is larger than the sum of its proper divisors (39964084).

53215436 is a wasteful number, since it uses less digits than its factorization.

53215436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7504 (or 7502 counting only the distinct ones).

The product of its digits is 10800, while the sum is 29.

The square root of 53215436 is about 7294.8910889745. The cubic root of 53215436 is about 376.1368428271.

The spelling of 53215436 in words is "fifty-three million, two hundred fifteen thousand, four hundred thirty-six".