53488020 has 96 divisors (see below), whose sum is σ = 156441600. Its totient is φ = 13639680.

The previous prime is 53487997. The next prime is 53488073. The reversal of 53488020 is 2088435.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 277044 + ... + 277236.

It is an arithmetic number, because the mean of its divisors is an integer number (1629600).

Almost surely, 2^53488020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53488020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78220800).

53488020 is an abundant number, since it is smaller than the sum of its proper divisors (102953580).

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

53488020 is a wasteful number, since it uses less digits than its factorization.

53488020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385 (or 383 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 53488020 is about 7313.5504373731. The cubic root of 53488020 is about 376.7779746052. Note that the first 3 decimals are identical.

The spelling of 53488020 in words is "fifty-three million, four hundred eighty-eight thousand, twenty".