54415647205 has 8 divisors (see below), whose sum is σ = 65342522232. Its totient is φ = 43503354048.

The previous prime is 54415647197. The next prime is 54415647211. The reversal of 54415647205 is 50274651445.

It can be written as a sum of positive squares in 4 ways, for example, as 1757789476 + 52657857729 = 41926^2 + 229473^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54415647205 - 2³ = 54415647197 is a prime.

It is a super-2 number, since 2×54415647205² (a number of 22 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 3637254 + ... + 3652183.

It is an arithmetic number, because the mean of its divisors is an integer number (8167815279).

Almost surely, 2^54415647205 is an apocalyptic number.

It is an amenable number.

54415647205 is a deficient number, since it is larger than the sum of its proper divisors (10926875027).

54415647205 is a wasteful number, since it uses less digits than its factorization.

54415647205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7290935.

The product of its (nonzero) digits is 672000, while the sum is 43.

It can be divided in two parts, 544156 and 47205, that added together give a square (591361 = 769²).

The spelling of 54415647205 in words is "fifty-four billion, four hundred fifteen million, six hundred forty-seven thousand, two hundred five".