1005655055 has 16 divisors (see below), whose sum is σ = 1227493440. Its totient is φ = 790825728.

The previous prime is 1005654997. The next prime is 1005655073. The reversal of 1005655055 is 5505565001.

It is a cyclic number.

It is not a de Polignac number, because 1005655055 - 2¹² = 1005650959 is a prime.

It is a super-2 number, since 2×1005655055² = 2022684179294106050, 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 15 ways as a sum of consecutive naturals, for example, 70454 + ... + 83516.

It is an arithmetic number, because the mean of its divisors is an integer number (76718340).

Almost surely, 2^1005655055 is an apocalyptic number.

1005655055 is a deficient number, since it is larger than the sum of its proper divisors (221838385).

1005655055 is a wasteful number, since it uses less digits than its factorization.

1005655055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13330.

The product of its (nonzero) digits is 18750, while the sum is 32.

The square root of 1005655055 is about 31712.0648176684. The cubic root of 1005655055 is about 1001.8814761607.

The spelling of 1005655055 in words is "one billion, five million, six hundred fifty-five thousand, fifty-five".