53658828 has 24 divisors (see below), whose sum is σ = 139115760. Its totient is φ = 17886240.

The previous prime is 53658821. The next prime is 53658853. The reversal of 53658828 is 82885635.

It is a happy number.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (53658821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248313 + ... + 248528.

It is an arithmetic number, because the mean of its divisors is an integer number (5796490).

Almost surely, 2^53658828 is an apocalyptic number.

It is an amenable number.

53658828 is an abundant number, since it is smaller than the sum of its proper divisors (85456932).

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

53658828 is a wasteful number, since it uses less digits than its factorization.

53658828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496854 (or 496846 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The square root of 53658828 is about 7325.2186315495. The cubic root of 53658828 is about 377.1786145259.

The spelling of 53658828 in words is "fifty-three million, six hundred fifty-eight thousand, eight hundred twenty-eight".