1056531546 has 64 divisors (see below), whose sum is σ = 2721116160. Its totient is φ = 297606960.

The previous prime is 1056531523. The next prime is 1056531563. The reversal of 1056531546 is 6451356501.

1056531546 is a `hidden beast` number, since 10 + 56 + 53 + 1 + 546 = 666.

It is a super-2 number, since 2×1056531546² = 2232517815386300232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1056531546.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7155 + ... + 46521.

It is an arithmetic number, because the mean of its divisors is an integer number (42517440).

Almost surely, 2^1056531546 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1056531546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1360558080).

1056531546 is an abundant number, since it is smaller than the sum of its proper divisors (1664584614).

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

1056531546 is a wasteful number, since it uses less digits than its factorization.

1056531546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39456 (or 39450 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 1056531546 is about 32504.3311883201. The cubic root of 1056531546 is about 1018.4995065512.

The spelling of 1056531546 in words is "one billion, fifty-six million, five hundred thirty-one thousand, five hundred forty-six".