2157475005 has 48 divisors (see below), whose sum is σ = 4277170560. Its totient is φ = 985509504.

The previous prime is 2157474989. The next prime is 2157475027. The reversal of 2157475005 is 5005747512.

It is not a de Polignac number, because 2157475005 - 2⁴ = 2157474989 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 692391 + ... + 695499.

It is an arithmetic number, because the mean of its divisors is an integer number (89107720).

Almost surely, 2^2157475005 is an apocalyptic number.

It is an amenable number.

2157475005 is a deficient number, since it is larger than the sum of its proper divisors (2119695555).

2157475005 is a wasteful number, since it uses less digits than its factorization.

2157475005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5330 (or 5327 counting only the distinct ones).

The product of its (nonzero) digits is 49000, while the sum is 36.

The square root of 2157475005 is about 46448.6275900591. The cubic root of 2157475005 is about 1292.1569197671.

The spelling of 2157475005 in words is "two billion, one hundred fifty-seven million, four hundred seventy-five thousand, five".