1025215055 has 16 divisors (see below), whose sum is σ = 1264590144. Its totient is φ = 797322240.

The previous prime is 1025215027. The next prime is 1025215057. The reversal of 1025215055 is 5505125201.

It is not a de Polignac number, because 1025215055 - 2⁶ = 1025214991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025215057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 383654 + ... + 386316.

It is an arithmetic number, because the mean of its divisors is an integer number (79036884).

Almost surely, 2^1025215055 is an apocalyptic number.

1025215055 is a deficient number, since it is larger than the sum of its proper divisors (239375089).

1025215055 is a wasteful number, since it uses less digits than its factorization.

1025215055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4786.

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 1025215055 is about 32018.9796058525. The cubic root of 1025215055 is about 1008.3353472780.

The spelling of 1025215055 in words is "one billion, twenty-five million, two hundred fifteen thousand, fifty-five".