53787828 has 12 divisors (see below), whose sum is σ = 125504960. Its totient is φ = 17929272.

The previous prime is 53787827. The next prime is 53787863. The reversal of 53787828 is 82878735.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53787827) 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, 2241148 + ... + 2241171.

Almost surely, 2^53787828 is an apocalyptic number.

It is an amenable number.

53787828 is an abundant number, since it is smaller than the sum of its proper divisors (71717132).

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

53787828 is a wasteful number, since it uses less digits than its factorization.

53787828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4482326 (or 4482324 counting only the distinct ones).

The product of its digits is 752640, while the sum is 48.

The square root of 53787828 is about 7334.0185437453. The cubic root of 53787828 is about 377.4806282181.

It can be divided in two parts, 53787 and 828, that added together give a triangular number (54615 = T₃₃₀).

The spelling of 53787828 in words is "fifty-three million, seven hundred eighty-seven thousand, eight hundred twenty-eight".