1005556252 has 24 divisors (see below), whose sum is σ = 1813790160. Its totient is φ = 487428480.

The previous prime is 1005556249. The next prime is 1005556261. The reversal of 1005556252 is 2526555001.

It is a super-2 number, since 2×1005556252² = 2022286751872575008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29499 + ... + 53677.

It is an arithmetic number, because the mean of its divisors is an integer number (75574590).

Almost surely, 2^1005556252 is an apocalyptic number.

It is an amenable number.

1005556252 is a deficient number, since it is larger than the sum of its proper divisors (808233908).

1005556252 is a wasteful number, since it uses less digits than its factorization.

1005556252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24501 (or 24499 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 1005556252 is about 31710.5069653577. The cubic root of 1005556252 is about 1001.8486643342.

The spelling of 1005556252 in words is "one billion, five million, five hundred fifty-six thousand, two hundred fifty-two".