53578332 has 36 divisors (see below), whose sum is σ = 135984576. Its totient is φ = 17786880.

The previous prime is 53578321. The next prime is 53578333. The reversal of 53578332 is 23387535.

53578332 is a `hidden beast` number, since 53 + 578 + 3 + 32 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×53578332³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53578333) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6357 + ... + 12147.

Almost surely, 2^53578332 is an apocalyptic number.

It is an amenable number.

53578332 is an abundant number, since it is smaller than the sum of its proper divisors (82406244).

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

53578332 is a wasteful number, since it uses less digits than its factorization.

53578332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6058 (or 6053 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The square root of 53578332 is about 7319.7221258734. The cubic root of 53578332 is about 376.9899126496.

It can be divided in two parts, 5357 and 8332, that added together give a square (13689 = 117²).

The spelling of 53578332 in words is "fifty-three million, five hundred seventy-eight thousand, three hundred thirty-two".