1000005573 has 24 divisors (see below), whose sum is σ = 1577331360. Its totient is φ = 561741600.

The previous prime is 1000005547. The next prime is 1000005583. The reversal of 1000005573 is 3755000001.

It is a happy number.

It is not a de Polignac number, because 1000005573 - 2⁵ = 1000005541 is a prime.

It is a super-2 number, since 2×1000005573² = 2000022292062116658, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000005583) 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, 48978 + ... + 66323.

It is an arithmetic number, because the mean of its divisors is an integer number (65722140).

Almost surely, 2^1000005573 is an apocalyptic number.

It is an amenable number.

1000005573 is a deficient number, since it is larger than the sum of its proper divisors (577325787).

1000005573 is a wasteful number, since it uses less digits than its factorization.

1000005573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115377 (or 115370 counting only the distinct ones).

The product of its (nonzero) digits is 525, while the sum is 21.

The square root of 1000005573 is about 31622.8647184280. The cubic root of 1000005573 is about 1000.0018576632.

Adding to 1000005573 its reverse (3755000001), we get a palindrome (4755005574).

The spelling of 1000005573 in words is "one billion, five thousand, five hundred seventy-three".