1052585781 has 8 divisors (see below), whose sum is σ = 1511405280. Its totient is φ = 647745072.

The previous prime is 1052585767. The next prime is 1052585791. The reversal of 1052585781 is 1875852501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1052585781 - 2⁶ = 1052585717 is a prime.

It is a super-2 number, since 2×1052585781² = 2215873652726759922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1052585791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13494651 + ... + 13494728.

It is an arithmetic number, because the mean of its divisors is an integer number (188925660).

Almost surely, 2^1052585781 is an apocalyptic number.

It is an amenable number.

1052585781 is a deficient number, since it is larger than the sum of its proper divisors (458819499).

1052585781 is a wasteful number, since it uses less digits than its factorization.

1052585781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26989395.

The product of its (nonzero) digits is 112000, while the sum is 42.

The square root of 1052585781 is about 32443.5784247053. The cubic root of 1052585781 is about 1017.2300151984.

The spelling of 1052585781 in words is "one billion, fifty-two million, five hundred eighty-five thousand, seven hundred eighty-one".