1015211055 has 16 divisors (see below), whose sum is σ = 1631139840. Its totient is φ = 539178528.

The previous prime is 1015211051. The next prime is 1015211063. The reversal of 1015211055 is 5501125101.

1015211055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1015211055 - 2² = 1015211051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1015211051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138007 + ... + 145176.

It is an arithmetic number, because the mean of its divisors is an integer number (101946240).

Almost surely, 2^1015211055 is an apocalyptic number.

1015211055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1015211055 is a deficient number, since it is larger than the sum of its proper divisors (615928785).

1015211055 is a wasteful number, since it uses less digits than its factorization.

1015211055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283430.

The product of its (nonzero) digits is 250, while the sum is 21.

The square root of 1015211055 is about 31862.3767945833. The cubic root of 1015211055 is about 1005.0448582735.

Adding to 1015211055 its reverse (5501125101), we get a palindrome (6516336156).

The spelling of 1015211055 in words is "one billion, fifteen million, two hundred eleven thousand, fifty-five".