1005531275 has 12 divisors (see below), whose sum is σ = 1424981712. Its totient is φ = 689507040.

The previous prime is 1005531257. The next prime is 1005531311. The reversal of 1005531275 is 5721355001.

It is a happy number.

It is not a de Polignac number, because 1005531275 - 2²² = 1001336971 is a prime.

It is a super-2 number, since 2×1005531275² = 2022186290006251250, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2872772 + ... + 2873121.

It is an arithmetic number, because the mean of its divisors is an integer number (118748476).

Almost surely, 2^1005531275 is an apocalyptic number.

1005531275 is a deficient number, since it is larger than the sum of its proper divisors (419450437).

1005531275 is an equidigital number, since it uses as much as digits as its factorization.

1005531275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5745910 (or 5745905 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 1005531275 is about 31710.1131344560. The cubic root of 1005531275 is about 1001.8403692964.

Adding to 1005531275 its reverse (5721355001), we get a palindrome (6726886276).

The spelling of 1005531275 in words is "one billion, five million, five hundred thirty-one thousand, two hundred seventy-five".