53583450 has 48 divisors (see below), whose sum is σ = 133595616. Its totient is φ = 14212800.

The previous prime is 53583449. The next prime is 53583457. The reversal of 53583450 is 5438535.

It is a super-2 number, since 2×53583450² = 5742372227805000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (53583457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30804 + ... + 32496.

It is an arithmetic number, because the mean of its divisors is an integer number (2783242).

Almost surely, 2^53583450 is an apocalyptic number.

53583450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 53583450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66797808).

53583450 is an abundant number, since it is smaller than the sum of its proper divisors (80012166).

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

53583450 is a wasteful number, since it uses less digits than its factorization.

53583450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919 (or 1914 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 53583450 is about 7320.0717209601. The cubic root of 53583450 is about 377.0019160900.

The spelling of 53583450 in words is "fifty-three million, five hundred eighty-three thousand, four hundred fifty".