1025120455 has 16 divisors (see below), whose sum is σ = 1243447200. Its totient is φ = 811251072.

The previous prime is 1025120399. The next prime is 1025120477. The reversal of 1025120455 is 5540215201.

1025120455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 1025120455 - 2⁹ = 1025119943 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 661021 + ... + 662569.

It is an arithmetic number, because the mean of its divisors is an integer number (77715450).

Almost surely, 2^1025120455 is an apocalyptic number.

1025120455 is a deficient number, since it is larger than the sum of its proper divisors (218326745).

1025120455 is a wasteful number, since it uses less digits than its factorization.

1025120455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2898.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 1025120455 is about 32017.5023229483. The cubic root of 1025120455 is about 1008.3043321729.

Adding to 1025120455 its reverse (5540215201), we get a palindrome (6565335656).

The spelling of 1025120455 in words is "one billion, twenty-five million, one hundred twenty thousand, four hundred fifty-five".