245552511223405 has 4 divisors (see below), whose sum is σ = 294663013468092. Its totient is φ = 196442008978720.

The previous prime is 245552511223373. The next prime is 245552511223421. The reversal of 245552511223405 is 504322115255542.

245552511223405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 50474360729961 + 195078150493444 = 7104531^2 + 13967038^2 .

It is not a de Polignac number, because 245552511223405 - 2⁵ = 245552511223373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24555251122336 + ... + 24555251122345.

It is an arithmetic number, because the mean of its divisors is an integer number (73665753367023).

Almost surely, 2^{245552511223405} is an apocalyptic number.

It is an amenable number.

245552511223405 is a deficient number, since it is larger than the sum of its proper divisors (49110502244687).

245552511223405 is an equidigital number, since it uses as much as digits as its factorization.

245552511223405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49110502244686.

The product of its (nonzero) digits is 2400000, while the sum is 46.

Adding to 245552511223405 its reverse (504322115255542), we get a palindrome (749874626478947).

The spelling of 245552511223405 in words is "two hundred forty-five trillion, five hundred fifty-two billion, five hundred eleven million, two hundred twenty-three thousand, four hundred five".