1012530555 has 24 divisors (see below), whose sum is σ = 1772437680. Its totient is φ = 534667200.

The previous prime is 1012530551. The next prime is 1012530569. The reversal of 1012530555 is 5550352101.

1012530555 is a `hidden beast` number, since 101 + 2 + 5 + 3 + 0 + 555 = 666.

It is not a de Polignac number, because 1012530555 - 2² = 1012530551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1012530551) 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, 106845 + ... + 115934.

It is an arithmetic number, because the mean of its divisors is an integer number (73851570).

Almost surely, 2^1012530555 is an apocalyptic number.

1012530555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1012530555 is a deficient number, since it is larger than the sum of its proper divisors (759907125).

1012530555 is a wasteful number, since it uses less digits than its factorization.

1012530555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222891 (or 222888 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 1012530555 is about 31820.2852752768. The cubic root of 1012530555 is about 1004.1595260210.

Adding to 1012530555 its reverse (5550352101), we get a palindrome (6562882656).

The spelling of 1012530555 in words is "one billion, twelve million, five hundred thirty thousand, five hundred fifty-five".