2975457257 has 8 divisors (see below), whose sum is σ = 3021194880. Its totient is φ = 2930055120.

The previous prime is 2975457241. The next prime is 2975457269. The reversal of 2975457257 is 7527545792.

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 2975457257 - 2⁴ = 2975457241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2975457199 and 2975457208.

It is not an unprimeable number, because it can be changed into a prime (2975457757) 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, 65969 + ... + 101502.

It is an arithmetic number, because the mean of its divisors is an integer number (377649360).

Almost surely, 2^2975457257 is an apocalyptic number.

It is an amenable number.

2975457257 is a deficient number, since it is larger than the sum of its proper divisors (45737623).

2975457257 is a wasteful number, since it uses less digits than its factorization.

2975457257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167743.

The product of its digits is 6174000, while the sum is 53.

The square root of 2975457257 is about 54547.7520801728. The cubic root of 2975457257 is about 1438.3058227947.

The spelling of 2975457257 in words is "two billion, nine hundred seventy-five million, four hundred fifty-seven thousand, two hundred fifty-seven".