1025260155 has 24 divisors (see below), whose sum is σ = 1782417312. Its totient is φ = 545174784.

The previous prime is 1025260147. The next prime is 1025260189. The reversal of 1025260155 is 5510625201.

1025260155 is a `hidden beast` number, since 1 + 0 + 2 + 5 + 2 + 601 + 55 = 666.

It is not a de Polignac number, because 1025260155 - 2³ = 1025260147 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18639 + ... + 48968.

It is an arithmetic number, because the mean of its divisors is an integer number (74267388).

Almost surely, 2^1025260155 is an apocalyptic number.

1025260155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1025260155 is a deficient number, since it is larger than the sum of its proper divisors (757157157).

1025260155 is a wasteful number, since it uses less digits than its factorization.

1025260155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67955 (or 67952 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 1025260155 is about 32019.6838678960. The cubic root of 1025260155 is about 1008.3501328774.

Adding to 1025260155 its reverse (5510625201), we get a palindrome (6535885356).

It can be divided in two parts, 10252 and 60155, that added together give a palindrome (70407).

The spelling of 1025260155 in words is "one billion, twenty-five million, two hundred sixty thousand, one hundred fifty-five".