252563463953 has 4 divisors (see below), whose sum is σ = 252574866468. Its totient is φ = 252552061440.

The previous prime is 252563463923. The next prime is 252563463989. The reversal of 252563463953 is 359364365252.

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

It can be written as a sum of positive squares in 2 ways, for example, as 143605376209 + 108958087744 = 378953^2 + 330088^2 .

It is a cyclic number.

It is not a de Polignac number, because 252563463953 - 2¹⁰ = 252563462929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252563463895 and 252563463904.

It is not an unprimeable number, because it can be changed into a prime (252563463923) 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, 5667968 + ... + 5712353.

It is an arithmetic number, because the mean of its divisors is an integer number (63143716617).

Almost surely, 2^252563463953 is an apocalyptic number.

It is an amenable number.

252563463953 is a deficient number, since it is larger than the sum of its proper divisors (11402515).

252563463953 is a wasteful number, since it uses less digits than its factorization.

252563463953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11402514.

The product of its digits is 17496000, while the sum is 53.

The spelling of 252563463953 in words is "two hundred fifty-two billion, five hundred sixty-three million, four hundred sixty-three thousand, nine hundred fifty-three".