53557332 has 12 divisors (see below), whose sum is σ = 124967136. Its totient is φ = 17852440.

The previous prime is 53557331. The next prime is 53557369. The reversal of 53557332 is 23375535.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 53557293 and 53557302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53557331) by changing a digit.

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, 2231544 + ... + 2231567.

It is an arithmetic number, because the mean of its divisors is an integer number (10413928).

Almost surely, 2^53557332 is an apocalyptic number.

It is an amenable number.

53557332 is an abundant number, since it is smaller than the sum of its proper divisors (71409804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53557332 is a wasteful number, since it uses less digits than its factorization.

53557332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4463118 (or 4463116 counting only the distinct ones).

The product of its digits is 47250, while the sum is 33.

The square root of 53557332 is about 7318.2875046011. The cubic root of 53557332 is about 376.9406525450.

The spelling of 53557332 in words is "fifty-three million, five hundred fifty-seven thousand, three hundred thirty-two".