1015015055 has 32 divisors (see below), whose sum is σ = 1331942400. Its totient is φ = 739953792.

The previous prime is 1015015049. The next prime is 1015015069. The reversal of 1015015055 is 5505105101.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1015015055 - 2⁸ = 1015014799 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1015015055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 261509 + ... + 265361.

It is an arithmetic number, because the mean of its divisors is an integer number (41623200).

Almost surely, 2^1015015055 is an apocalyptic number.

1015015055 is a deficient number, since it is larger than the sum of its proper divisors (316927345).

1015015055 is a wasteful number, since it uses less digits than its factorization.

1015015055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3983.

The product of its (nonzero) digits is 625, while the sum is 23.

The square root of 1015015055 is about 31859.3009182562. The cubic root of 1015015055 is about 1004.9801750171.

The spelling of 1015015055 in words is "one billion, fifteen million, fifteen thousand, fifty-five".