55072105 has 8 divisors (see below), whose sum is σ = 72094464. Its totient is φ = 40052400.

The previous prime is 55072099. The next prime is 55072117. The reversal of 55072105 is 50127055.

It is a happy number.

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

It is not a de Polignac number, because 55072105 - 2⁷ = 55071977 is a prime.

It is a super-3 number, since 3×55072105³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55072105.

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, 500601 + ... + 500710.

It is an arithmetic number, because the mean of its divisors is an integer number (9011808).

Almost surely, 2^55072105 is an apocalyptic number.

55072105 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55072105 is a deficient number, since it is larger than the sum of its proper divisors (17022359).

55072105 is a wasteful number, since it uses less digits than its factorization.

55072105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001327.

The product of its (nonzero) digits is 1750, while the sum is 25.

The square root of 55072105 is about 7421.0582129505. The cubic root of 55072105 is about 380.4613625269.

The spelling of 55072105 in words is "fifty-five million, seventy-two thousand, one hundred five".