55405250456 has 64 divisors (see below), whose sum is σ = 106272000000. Its totient is φ = 27075223296.

The previous prime is 55405250441. The next prime is 55405250497. The reversal of 55405250456 is 65405250455.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23093945 + ... + 23096343.

It is an arithmetic number, because the mean of its divisors is an integer number (1660500000).

Almost surely, 2^55405250456 is an apocalyptic number.

It is an amenable number.

55405250456 is a deficient number, since it is larger than the sum of its proper divisors (50866749544).

55405250456 is a wasteful number, since it uses less digits than its factorization.

55405250456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2856 (or 2852 counting only the distinct ones).

The product of its (nonzero) digits is 600000, while the sum is 41.

Subtracting 55405250456 from its reverse (65405250455), we obtain a palindrome (9999999999).

The spelling of 55405250456 in words is "fifty-five billion, four hundred five million, two hundred fifty thousand, four hundred fifty-six".