1025043455 has 4 divisors (see below), whose sum is σ = 1230052152. Its totient is φ = 820034760.

The previous prime is 1025043433. The next prime is 1025043457. The reversal of 1025043455 is 5543405201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5543405201 = 5009 ⋅1106689.

It is not a de Polignac number, because 1025043455 - 2⁶ = 1025043391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025043457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102504341 + ... + 102504350.

It is an arithmetic number, because the mean of its divisors is an integer number (307513038).

Almost surely, 2^1025043455 is an apocalyptic number.

1025043455 is a deficient number, since it is larger than the sum of its proper divisors (205008697).

1025043455 is an equidigital number, since it uses as much as digits as its factorization.

1025043455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205008696.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 1025043455 is about 32016.2998330538. The cubic root of 1025043455 is about 1008.2790859113.

Adding to 1025043455 its reverse (5543405201), we get a palindrome (6568448656).

The spelling of 1025043455 in words is "one billion, twenty-five million, forty-three thousand, four hundred fifty-five".