253453145063 has 4 divisors (see below), whose sum is σ = 253602324600. Its totient is φ = 253303965528.

The previous prime is 253453145059. The next prime is 253453145069. The reversal of 253453145063 is 360541354352.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 253453145063 - 2² = 253453145059 is a prime.

It is a super-2 number, since 2×253453145063² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 253453145063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253453145069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74587220 + ... + 74590617.

It is an arithmetic number, because the mean of its divisors is an integer number (63400581150).

Almost surely, 2^253453145063 is an apocalyptic number.

253453145063 is a deficient number, since it is larger than the sum of its proper divisors (149179537).

253453145063 is a wasteful number, since it uses less digits than its factorization.

253453145063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149179536.

The product of its (nonzero) digits is 648000, while the sum is 41.

The spelling of 253453145063 in words is "two hundred fifty-three billion, four hundred fifty-three million, one hundred forty-five thousand, sixty-three".