2057153947 has 8 divisors (see below), whose sum is σ = 2132370000. Its totient is φ = 1982223264.

The previous prime is 2057153939. The next prime is 2057153977. The reversal of 2057153947 is 7493517502.

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

It is a cyclic number.

It is not a de Polignac number, because 2057153947 - 2³ = 2057153939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2057153977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56608 + ... + 85549.

It is an arithmetic number, because the mean of its divisors is an integer number (266546250).

Almost surely, 2^2057153947 is an apocalyptic number.

2057153947 is a deficient number, since it is larger than the sum of its proper divisors (75216053).

2057153947 is a wasteful number, since it uses less digits than its factorization.

2057153947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142685.

The product of its (nonzero) digits is 264600, while the sum is 43.

The square root of 2057153947 is about 45355.8590151261. The cubic root of 2057153947 is about 1271.8100849313.

The spelling of 2057153947 in words is "two billion, fifty-seven million, one hundred fifty-three thousand, nine hundred forty-seven".