263053057 has 4 divisors (see below), whose sum is σ = 263231920. Its totient is φ = 262874196.

The previous prime is 263053033. The next prime is 263053069. The reversal of 263053057 is 750350362.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-263053057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (263053097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87207 + ... + 90172.

It is an arithmetic number, because the mean of its divisors is an integer number (65807980).

Almost surely, 2^263053057 is an apocalyptic number.

It is an amenable number.

263053057 is a deficient number, since it is larger than the sum of its proper divisors (178863).

263053057 is a wasteful number, since it uses less digits than its factorization.

263053057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178862.

The product of its (nonzero) digits is 18900, while the sum is 31.

The square root of 263053057 is about 16218.9104751213. The cubic root of 263053057 is about 640.7389389790.

The spelling of 263053057 in words is "two hundred sixty-three million, fifty-three thousand, fifty-seven".