53997136 has 10 divisors (see below), whose sum is σ = 104619482. Its totient is φ = 26998560.

The previous prime is 53997127. The next prime is 53997143. The reversal of 53997136 is 63179935.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 53582400 + 414736 = 7320^2 + 644^2 .

It is a junction number, because it is equal to n+sod(n) for n = 53997092 and 53997101.

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, 1687395 + ... + 1687426.

Almost surely, 2^53997136 is an apocalyptic number.

It is an amenable number.

53997136 is a deficient number, since it is larger than the sum of its proper divisors (50622346).

53997136 is a wasteful number, since it uses less digits than its factorization.

53997136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3374829 (or 3374823 counting only the distinct ones).

The product of its digits is 153090, while the sum is 43.

The square root of 53997136 is about 7348.2743552483. The cubic root of 53997136 is about 377.9696326024.

The spelling of 53997136 in words is "fifty-three million, nine hundred ninety-seven thousand, one hundred thirty-six".