53520885 has 64 divisors (see below), whose sum is σ = 108380160. Its totient is φ = 24805440.

The previous prime is 53520881. The next prime is 53520889. The reversal of 53520885 is 58802535.

53520885 is a `hidden beast` number, since 53 + 520 + 8 + 85 = 666.

It is an interprime number because it is at equal distance from previous prime (53520881) and next prime (53520889).

It is not a de Polignac number, because 53520885 - 2² = 53520881 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53520881) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 33372 + ... + 34938.

It is an arithmetic number, because the mean of its divisors is an integer number (1693440).

Almost surely, 2^53520885 is an apocalyptic number.

53520885 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

53520885 is an abundant number, since it is smaller than the sum of its proper divisors (54859275).

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

53520885 is a wasteful number, since it uses less digits than its factorization.

53520885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615 (or 1609 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The square root of 53520885 is about 7315.7969490685. The cubic root of 53520885 is about 376.8551275381.

The spelling of 53520885 in words is "fifty-three million, five hundred twenty thousand, eight hundred eighty-five".