263013513 has 8 divisors (see below), whose sum is σ = 400782528. Its totient is φ = 150293424.

The previous prime is 263013503. The next prime is 263013521. The reversal of 263013513 is 315310362.

It is a happy number.

263013513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 263013513 - 2⁴ = 263013497 is a prime.

It is a super-2 number, since 2×263013513² = 138352216041202338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (263013503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6262206 + ... + 6262247.

It is an arithmetic number, because the mean of its divisors is an integer number (50097816).

Almost surely, 2^263013513 is an apocalyptic number.

It is an amenable number.

263013513 is a deficient number, since it is larger than the sum of its proper divisors (137769015).

263013513 is a wasteful number, since it uses less digits than its factorization.

263013513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12524463.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 263013513 is about 16217.6913585134. The cubic root of 263013513 is about 640.7068305637.

Adding to 263013513 its reverse (315310362), we get a palindrome (578323875).

The spelling of 263013513 in words is "two hundred sixty-three million, thirteen thousand, five hundred thirteen".