1052257543 has 8 divisors (see below), whose sum is σ = 1062723200. Its totient is φ = 1041838200.

The previous prime is 1052257529. The next prime is 1052257553. The reversal of 1052257543 is 3457522501.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1052257543 is a prime.

It is a super-2 number, since 2×1052257543² = 2214491873600793698, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1052257499 and 1052257508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1052257513) 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, 35008 + ... + 57706.

It is an arithmetic number, because the mean of its divisors is an integer number (132840400).

Almost surely, 2^1052257543 is an apocalyptic number.

1052257543 is a deficient number, since it is larger than the sum of its proper divisors (10465657).

1052257543 is a wasteful number, since it uses less digits than its factorization.

1052257543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23157.

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 1052257543 is about 32438.5194329211. The cubic root of 1052257543 is about 1017.1242666489.

The spelling of 1052257543 in words is "one billion, fifty-two million, two hundred fifty-seven thousand, five hundred forty-three".