2855729957 has 2 divisors, whose sum is σ = 2855729958. Its totient is φ = 2855729956.

The previous prime is 2855729953. The next prime is 2855729993. The reversal of 2855729957 is 7599275582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1800389761 + 1055340196 = 42431^2 + 32486^2 .

It is a cyclic number.

It is not a de Polignac number, because 2855729957 - 2² = 2855729953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2855729896 and 2855729905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2855729953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1427864978 + 1427864979.

It is an arithmetic number, because the mean of its divisors is an integer number (1427864979).

Almost surely, 2^2855729957 is an apocalyptic number.

It is an amenable number.

2855729957 is a deficient number, since it is larger than the sum of its proper divisors (1).

2855729957 is an equidigital number, since it uses as much as digits as its factorization.

2855729957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15876000, while the sum is 59.

The square root of 2855729957 is about 53439.0302775041. The cubic root of 2855729957 is about 1418.7494705193.

The spelling of 2855729957 in words is "two billion, eight hundred fifty-five million, seven hundred twenty-nine thousand, nine hundred fifty-seven".