55413640305 has 12 divisors (see below), whose sum is σ = 96050309940. Its totient is φ = 29553941472.

The previous prime is 55413640301. The next prime is 55413640319. The reversal of 55413640305 is 50304631455.

55413640305 is a `hidden beast` number, since 5 + 5 + 4 + 1 + 3 + 640 + 3 + 0 + 5 = 666.

55413640305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 39009410064 + 16404230241 = 197508^2 + 128079^2 .

It is not a de Polignac number, because 55413640305 - 2² = 55413640301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55413640305.

It is not an unprimeable number, because it can be changed into a prime (55413640301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 615707070 + ... + 615707159.

It is an arithmetic number, because the mean of its divisors is an integer number (8004192495).

Almost surely, 2^55413640305 is an apocalyptic number.

It is an amenable number.

55413640305 is a deficient number, since it is larger than the sum of its proper divisors (40636669635).

55413640305 is a wasteful number, since it uses less digits than its factorization.

55413640305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231414240 (or 1231414237 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

It can be divided in two parts, 554136 and 40305, that added together give a square (594441 = 771²).

The spelling of 55413640305 in words is "fifty-five billion, four hundred thirteen million, six hundred forty thousand, three hundred five".