253077457 has 2 divisors, whose sum is σ = 253077458. Its totient is φ = 253077456.

The previous prime is 253077443. The next prime is 253077479. The reversal of 253077457 is 754770352.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172239376 + 80838081 = 13124^2 + 8991^2 .

It is a cyclic number.

It is not a de Polignac number, because 253077457 - 2¹¹ = 253075409 is a prime.

It is not a weakly prime, because it can be changed into another prime (253077427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126538728 + 126538729.

It is an arithmetic number, because the mean of its divisors is an integer number (126538729).

Almost surely, 2^253077457 is an apocalyptic number.

It is an amenable number.

253077457 is a deficient number, since it is larger than the sum of its proper divisors (1).

253077457 is an equidigital number, since it uses as much as digits as its factorization.

253077457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 205800, while the sum is 40.

The square root of 253077457 is about 15908.4083741900. The cubic root of 253077457 is about 632.5348922306.

The spelling of 253077457 in words is "two hundred fifty-three million, seventy-seven thousand, four hundred fifty-seven".