1055565630 has 96 divisors (see below), whose sum is σ = 3167184384. Its totient is φ = 238915008.

The previous prime is 1055565629. The next prime is 1055565631. The reversal of 1055565630 is 365655501.

1055565630 is a `hidden beast` number, since 10 + 5 + 5 + 5 + 6 + 5 + 630 = 666.

It is an interprime number because it is at equal distance from previous prime (1055565629) and next prime (1055565631).

It is a super-2 number, since 2×1055565630² = 2228437598474593800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055565631) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56757 + ... + 73023.

It is an arithmetic number, because the mean of its divisors is an integer number (32991504).

Almost surely, 2^1055565630 is an apocalyptic number.

1055565630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1055565630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1583592192).

1055565630 is an abundant number, since it is smaller than the sum of its proper divisors (2111618754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1055565630 is a wasteful number, since it uses less digits than its factorization.

1055565630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16390 (or 16387 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 36.

The square root of 1055565630 is about 32489.4695247552. The cubic root of 1055565630 is about 1018.1890299645.

The spelling of 1055565630 in words is "one billion, fifty-five million, five hundred sixty-five thousand, six hundred thirty".