53005380 has 24 divisors (see below), whose sum is σ = 148415232. Its totient is φ = 14134752.

The previous prime is 53005361. The next prime is 53005387. The reversal of 53005380 is 8350035.

It is a self number, because there is not a number n which added to its sum of digits gives 53005380.

It is not an unprimeable number, because it can be changed into a prime (53005387) 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, 441652 + ... + 441771.

It is an arithmetic number, because the mean of its divisors is an integer number (6183968).

Almost surely, 2^53005380 is an apocalyptic number.

It is an amenable number.

53005380 is an abundant number, since it is smaller than the sum of its proper divisors (95409852).

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

53005380 is a wasteful number, since it uses less digits than its factorization.

53005380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883435 (or 883433 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 53005380 is about 7280.4793798211. The cubic root of 53005380 is about 375.6412849401.

The spelling of 53005380 in words is "fifty-three million, five thousand, three hundred eighty".