2057516431 has 2 divisors, whose sum is σ = 2057516432. Its totient is φ = 2057516430.

The previous prime is 2057516429. The next prime is 2057516437. The reversal of 2057516431 is 1346157502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2057516431 - 2¹ = 2057516429 is a prime.

It is a super-2 number, since 2×2057516431² = 8466747727669955522, which contains 22 as substring.

Together with 2057516429, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2057516437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1028758215 + 1028758216.

It is an arithmetic number, because the mean of its divisors is an integer number (1028758216).

Almost surely, 2^2057516431 is an apocalyptic number.

2057516431 is a deficient number, since it is larger than the sum of its proper divisors (1).

2057516431 is an equidigital number, since it uses as much as digits as its factorization.

2057516431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 2057516431 is about 45359.8548388330. The cubic root of 2057516431 is about 1271.8847809666.

The spelling of 2057516431 in words is "two billion, fifty-seven million, five hundred sixteen thousand, four hundred thirty-one".