2153712505 has 16 divisors (see below), whose sum is σ = 3009394944. Its totient is φ = 1448965440.

The previous prime is 2153712499. The next prime is 2153712511. The reversal of 2153712505 is 5052173512.

It is an interprime number because it is at equal distance from previous prime (2153712499) and next prime (2153712511).

It is not a de Polignac number, because 2153712505 - 2¹⁷ = 2153581433 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 578661 + ... + 582370.

It is an arithmetic number, because the mean of its divisors is an integer number (188087184).

Almost surely, 2^2153712505 is an apocalyptic number.

It is an amenable number.

2153712505 is a deficient number, since it is larger than the sum of its proper divisors (855682439).

2153712505 is a wasteful number, since it uses less digits than its factorization.

2153712505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161096.

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 2153712505 is about 46408.1081816529. The cubic root of 2153712505 is about 1291.4053360361.

The spelling of 2153712505 in words is "two billion, one hundred fifty-three million, seven hundred twelve thousand, five hundred five".