2615121055 has 4 divisors (see below), whose sum is σ = 3138145272. Its totient is φ = 2092096840.

The previous prime is 2615121049. The next prime is 2615121073. The reversal of 2615121055 is 5501215162.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2615121055 - 2⁷ = 2615120927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261512101 + ... + 261512110.

It is an arithmetic number, because the mean of its divisors is an integer number (784536318).

Almost surely, 2^2615121055 is an apocalyptic number.

2615121055 is a deficient number, since it is larger than the sum of its proper divisors (523024217).

2615121055 is an equidigital number, since it uses as much as digits as its factorization.

2615121055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523024216.

The product of its (nonzero) digits is 3000, while the sum is 28.

The square root of 2615121055 is about 51138.2543210071. The cubic root of 2615121055 is about 1377.7294200796.

The spelling of 2615121055 in words is "two billion, six hundred fifteen million, one hundred twenty-one thousand, fifty-five".