2792256457 has 2 divisors, whose sum is σ = 2792256458. Its totient is φ = 2792256456.

The previous prime is 2792256449. The next prime is 2792256463. The reversal of 2792256457 is 7546522972.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2168206096 + 624050361 = 46564^2 + 24981^2 .

It is a cyclic number.

It is not a de Polignac number, because 2792256457 - 2³ = 2792256449 is a prime.

It is a super-2 number, since 2×2792256457² = 15593392243316385698, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2792256457.

It is not a weakly prime, because it can be changed into another prime (2792256487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1396128228 + 1396128229.

It is an arithmetic number, because the mean of its divisors is an integer number (1396128229).

Almost surely, 2^2792256457 is an apocalyptic number.

It is an amenable number.

2792256457 is a deficient number, since it is larger than the sum of its proper divisors (1).

2792256457 is an equidigital number, since it uses as much as digits as its factorization.

2792256457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2116800, while the sum is 49.

The square root of 2792256457 is about 52841.8059589186. The cubic root of 2792256457 is about 1408.1592358284.

The spelling of 2792256457 in words is "two billion, seven hundred ninety-two million, two hundred fifty-six thousand, four hundred fifty-seven".