1056558492 has 240 divisors, whose sum is σ = 3177022464. Its totient is φ = 303264000.

The previous prime is 1056558487. The next prime is 1056558499. The reversal of 1056558492 is 2948556501.

1056558492 is a `hidden beast` number, since 1 + 0 + 5 + 6 + 558 + 4 + 92 = 666.

It is a super-2 number, since 2×1056558492² = 2232631694034628128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056558499) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 8065267 + ... + 8065397.

Almost surely, 2^1056558492 is an apocalyptic number.

1056558492 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 1056558492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1588511232).

1056558492 is an abundant number, since it is smaller than the sum of its proper divisors (2120463972).

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

1056558492 is a wasteful number, since it uses less digits than its factorization.

1056558492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 45.

The square root of 1056558492 is about 32504.7456842843. The cubic root of 1056558492 is about 1018.5081651520.

The spelling of 1056558492 in words is "one billion, fifty-six million, five hundred fifty-eight thousand, four hundred ninety-two".