1155505552 has 20 divisors (see below), whose sum is σ = 2241727180. Its totient is φ = 576995328.

The previous prime is 1155505537. The next prime is 1155505567. The reversal of 1155505552 is 2555055511.

It is an interprime number because it is at equal distance from previous prime (1155505537) and next prime (1155505567).

It can be written as a sum of positive squares in 2 ways, for example, as 611869696 + 543635856 = 24736^2 + 23316^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34653 + ... + 59260.

It is an arithmetic number, because the mean of its divisors is an integer number (112086359).

Almost surely, 2^1155505552 is an apocalyptic number.

It is an amenable number.

1155505552 is a deficient number, since it is larger than the sum of its proper divisors (1086221628).

1155505552 is an equidigital number, since it uses as much as digits as its factorization.

1155505552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94690 (or 94684 counting only the distinct ones).

The product of its (nonzero) digits is 31250, while the sum is 34.

The square root of 1155505552 is about 33992.7279281908. The cubic root of 1155505552 is about 1049.3588079252.

The spelling of 1155505552 in words is "one billion, one hundred fifty-five million, five hundred five thousand, five hundred fifty-two".