1260563057 has 6 divisors (see below), whose sum is σ = 1364988582. Its totient is φ = 1163596512.

The previous prime is 1260563053. The next prime is 1260563069. The reversal of 1260563057 is 7503650621.

It can be written as a sum of positive squares in 3 ways, for example, as 90649441 + 1169913616 = 9521^2 + 34204^2 .

It is not a de Polignac number, because 1260563057 - 2² = 1260563053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1260563053) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3729308 + ... + 3729645.

It is an arithmetic number, because the mean of its divisors is an integer number (227498097).

Almost surely, 2^1260563057 is an apocalyptic number.

It is an amenable number.

1260563057 is a deficient number, since it is larger than the sum of its proper divisors (104425525).

1260563057 is an equidigital number, since it uses as much as digits as its factorization.

1260563057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7458979 (or 7458966 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 1260563057 is about 35504.4089797310. The cubic root of 1260563057 is about 1080.2431599837.

The spelling of 1260563057 in words is "one billion, two hundred sixty million, five hundred sixty-three thousand, fifty-seven".