1055581632 has 280 divisors, whose sum is σ = 3766759040. Its totient is φ = 285534720.

The previous prime is 1055581627. The next prime is 1055581661. The reversal of 1055581632 is 2361855501.

It is a happy number.

1055581632 is a `hidden beast` number, since 10 + 5 + 5 + 5 + 8 + 1 + 632 = 666.

It is a super-2 number, since 2×1055581632² = 2228505163631566848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 688707 + ... + 690237.

Almost surely, 2^1055581632 is an apocalyptic number.

1055581632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1055581632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1883379520).

1055581632 is an abundant number, since it is smaller than the sum of its proper divisors (2711177408).

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

1055581632 is a wasteful number, since it uses less digits than its factorization.

1055581632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1581 (or 1562 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The square root of 1055581632 is about 32489.7157882306. The cubic root of 1055581632 is about 1018.1941750665.

The spelling of 1055581632 in words is "one billion, fifty-five million, five hundred eighty-one thousand, six hundred thirty-two".