2057312507 has 4 divisors (see below), whose sum is σ = 2061537456. Its totient is φ = 2053087560.

The previous prime is 2057312447. The next prime is 2057312539. The reversal of 2057312507 is 7052137502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2057312507 - 2²⁴ = 2040535291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2057312407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2111744 + ... + 2112717.

It is an arithmetic number, because the mean of its divisors is an integer number (515384364).

Almost surely, 2^2057312507 is an apocalyptic number.

2057312507 is a deficient number, since it is larger than the sum of its proper divisors (4224949).

2057312507 is an equidigital number, since it uses as much as digits as its factorization.

2057312507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4224948.

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 2057312507 is about 45357.6069364335. The cubic root of 2057312507 is about 1271.8427600140.

The spelling of 2057312507 in words is "two billion, fifty-seven million, three hundred twelve thousand, five hundred seven".