1056575042 has 4 divisors (see below), whose sum is σ = 1584862566. Its totient is φ = 528287520.

The previous prime is 1056575029. The next prime is 1056575053. The reversal of 1056575042 is 2405756501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2405756501 = 13591 ⋅177011.

It can be written as a sum of positive squares in only one way, i.e., 701667121 + 354907921 = 26489^2 + 18839^2 .

It is a super-2 number, since 2×1056575042² = 2232701638754603528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1056574993 and 1056575011.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264143759 + ... + 264143762.

Almost surely, 2^1056575042 is an apocalyptic number.

1056575042 is a deficient number, since it is larger than the sum of its proper divisors (528287524).

1056575042 is an equidigital number, since it uses as much as digits as its factorization.

1056575042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528287523.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 1056575042 is about 32505.0002614982. Note that the first 3 decimals coincide. The cubic root of 1056575042 is about 1018.5134831166.

The spelling of 1056575042 in words is "one billion, fifty-six million, five hundred seventy-five thousand, forty-two".