55038840705 has 24 divisors (see below), whose sum is σ = 101012461992. Its totient is φ = 27627339264.

The previous prime is 55038840683. The next prime is 55038840707. The reversal of 55038840705 is 50704883055.

It can be written as a sum of positive squares in 4 ways, for example, as 28926866241 + 26111974464 = 170079^2 + 161592^2 .

It is not a de Polignac number, because 55038840705 - 2²⁹ = 54501969793 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55038840707) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35972334 + ... + 35973863.

It is an arithmetic number, because the mean of its divisors is an integer number (4208852583).

Almost surely, 2^55038840705 is an apocalyptic number.

It is an amenable number.

55038840705 is a deficient number, since it is larger than the sum of its proper divisors (45973621287).

55038840705 is a wasteful number, since it uses less digits than its factorization.

55038840705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71946225 (or 71946222 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 45.

The spelling of 55038840705 in words is "fifty-five billion, thirty-eight million, eight hundred forty thousand, seven hundred five".