245555455500511 has 4 divisors (see below), whose sum is σ = 264444336692872. Its totient is φ = 226666574308152.

The previous prime is 245555455500491. The next prime is 245555455500599. The reversal of 245555455500511 is 115005554555542.

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 245555455500511 - 2⁵ = 245555455500479 is a prime.

It is a super-2 number, since 2×245555455500511² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245555455500611) 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, 9444440596161 + ... + 9444440596186.

It is an arithmetic number, because the mean of its divisors is an integer number (66111084173218).

Almost surely, 2^{245555455500511} is an apocalyptic number.

245555455500511 is a deficient number, since it is larger than the sum of its proper divisors (18888881192361).

245555455500511 is a wasteful number, since it uses less digits than its factorization.

245555455500511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18888881192360.

The product of its (nonzero) digits is 12500000, while the sum is 52.

The spelling of 245555455500511 in words is "two hundred forty-five trillion, five hundred fifty-five billion, four hundred fifty-five million, five hundred thousand, five hundred eleven".