1025552043 has 8 divisors (see below), whose sum is σ = 1519336400. Its totient is φ = 683701344.

The previous prime is 1025552041. The next prime is 1025552057. The reversal of 1025552043 is 3402555201.

It is a happy number.

1025552043 is a `hidden beast` number, since 102 + 5 + 552 + 0 + 4 + 3 = 666.

It is not a de Polignac number, because 1025552043 - 2¹ = 1025552041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 37983409 = 1025552043 / (1 + 0 + 2 + 5 + 5 + 5 + 2 + 0 + 4 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1025551998 and 1025552016.

It is not an unprimeable number, because it can be changed into a prime (1025552041) 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, 18991678 + ... + 18991731.

It is an arithmetic number, because the mean of its divisors is an integer number (189917050).

Almost surely, 2^1025552043 is an apocalyptic number.

1025552043 is a deficient number, since it is larger than the sum of its proper divisors (493784357).

1025552043 is an equidigital number, since it uses as much as digits as its factorization.

1025552043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37983418 (or 37983412 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 1025552043 is about 32024.2414898464. The cubic root of 1025552043 is about 1008.4458150563.

The spelling of 1025552043 in words is "one billion, twenty-five million, five hundred fifty-two thousand, forty-three".