253562064433 has 4 divisors (see below), whose sum is σ = 253585451520. Its totient is φ = 253538677348.

The previous prime is 253562064419. The next prime is 253562064439. The reversal of 253562064433 is 334460265352.

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 not a de Polignac number, because 253562064433 - 2⁹ = 253562063921 is a prime.

It is a super-2 number, since 2×253562064433² (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 253562064433.

It is not an unprimeable number, because it can be changed into a prime (253562064439) 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, 11677273 + ... + 11698966.

It is an arithmetic number, because the mean of its divisors is an integer number (63396362880).

Almost surely, 2^253562064433 is an apocalyptic number.

It is an amenable number.

253562064433 is a deficient number, since it is larger than the sum of its proper divisors (23387087).

253562064433 is a wasteful number, since it uses less digits than its factorization.

253562064433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23387086.

The product of its (nonzero) digits is 1555200, while the sum is 43.

The spelling of 253562064433 in words is "two hundred fifty-three billion, five hundred sixty-two million, sixty-four thousand, four hundred thirty-three".