2155332505 has 32 divisors (see below), whose sum is σ = 2834196480. Its totient is φ = 1566428160.

The previous prime is 2155332499. The next prime is 2155332521. The reversal of 2155332505 is 5052335512.

It is not a de Polignac number, because 2155332505 - 2¹³ = 2155324313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 1340412 + ... + 1342018.

It is an arithmetic number, because the mean of its divisors is an integer number (88568640).

Almost surely, 2^2155332505 is an apocalyptic number.

It is an amenable number.

2155332505 is a deficient number, since it is larger than the sum of its proper divisors (678863975).

2155332505 is a wasteful number, since it uses less digits than its factorization.

2155332505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2169.

The product of its (nonzero) digits is 22500, while the sum is 31.

The square root of 2155332505 is about 46425.5587473107. The cubic root of 2155332505 is about 1291.7290487434.

The spelling of 2155332505 in words is "two billion, one hundred fifty-five million, three hundred thirty-two thousand, five hundred five".