253077761 has 2 divisors, whose sum is σ = 253077762. Its totient is φ = 253077760.

The previous prime is 253077757. The next prime is 253077863. The reversal of 253077761 is 167770352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 248850625 + 4227136 = 15775^2 + 2056^2 .

It is a cyclic number.

It is not a de Polignac number, because 253077761 - 2² = 253077757 is a prime.

It is a super-2 number, since 2×253077761² = 128096706225546242, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (253077061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126538880 + 126538881.

It is an arithmetic number, because the mean of its divisors is an integer number (126538881).

Almost surely, 2^253077761 is an apocalyptic number.

It is an amenable number.

253077761 is a deficient number, since it is larger than the sum of its proper divisors (1).

253077761 is an equidigital number, since it uses as much as digits as its factorization.

253077761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61740, while the sum is 38.

The square root of 253077761 is about 15908.4179288828. The cubic root of 253077761 is about 632.5351455003.

The spelling of 253077761 in words is "two hundred fifty-three million, seventy-seven thousand, seven hundred sixty-one".