2157475006 has 8 divisors (see below), whose sum is σ = 3241459440. Its totient is φ = 1076988528.

The previous prime is 2157474989. The next prime is 2157475027. The reversal of 2157475006 is 6005747512.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 872946 + ... + 875413.

It is an arithmetic number, because the mean of its divisors is an integer number (405182430).

Almost surely, 2^2157475006 is an apocalyptic number.

2157475006 is a deficient number, since it is larger than the sum of its proper divisors (1083984434).

2157475006 is a wasteful number, since it uses less digits than its factorization.

2157475006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1748978.

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 2157475006 is about 46448.6276008237. The cubic root of 2157475006 is about 1292.1569199667.

It can be divided in two parts, 21574 and 75006, that added together give a triangular number (96580 = T₄₃₉).

The spelling of 2157475006 in words is "two billion, one hundred fifty-seven million, four hundred seventy-five thousand, six".