1000555572 has 24 divisors (see below), whose sum is σ = 2367513792. Its totient is φ = 328820800.

The previous prime is 1000555559. The next prime is 1000555573. The reversal of 1000555572 is 2755550001.

It is a super-2 number, since 2×1000555572² = 2002222905320494368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000555573) 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, 586329 + ... + 588032.

It is an arithmetic number, because the mean of its divisors is an integer number (98646408).

Almost surely, 2^1000555572 is an apocalyptic number.

1000555572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1000555572 is an abundant number, since it is smaller than the sum of its proper divisors (1366958220).

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

1000555572 is a wasteful number, since it uses less digits than its factorization.

1000555572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174439 (or 1174437 counting only the distinct ones).

The product of its (nonzero) digits is 8750, while the sum is 30.

The square root of 1000555572 is about 31631.5597465569. The cubic root of 1000555572 is about 1000.1851563817.

The spelling of 1000555572 in words is "one billion, five hundred fifty-five thousand, five hundred seventy-two".