1047556505 has 32 divisors (see below), whose sum is σ = 1342897920. Its totient is φ = 782749440.

The previous prime is 1047556493. The next prime is 1047556537. The reversal of 1047556505 is 5056557401.

It is not a de Polignac number, because 1047556505 - 2¹⁴ = 1047540121 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1227659 + ... + 1228511.

It is an arithmetic number, because the mean of its divisors is an integer number (41965560).

Almost surely, 2^1047556505 is an apocalyptic number.

It is an amenable number.

1047556505 is a deficient number, since it is larger than the sum of its proper divisors (295341415).

1047556505 is a wasteful number, since it uses less digits than its factorization.

1047556505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121.

The product of its (nonzero) digits is 105000, while the sum is 38.

The square root of 1047556505 is about 32365.9775844945. The cubic root of 1047556505 is about 1015.6073128659.

The spelling of 1047556505 in words is "one billion, forty-seven million, five hundred fifty-six thousand, five hundred five".