7900055 has 8 divisors (see below), whose sum is σ = 9736512. Its totient is φ = 6149088.

The previous prime is 7900043. The next prime is 7900073. The reversal of 7900055 is 5500097.

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 7900055 - 2¹² = 7895959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7899997 and 7900033.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21167 + ... + 21536.

It is an arithmetic number, because the mean of its divisors is an integer number (1217064).

Almost surely, 2^7900055 is an apocalyptic number.

7900055 is a deficient number, since it is larger than the sum of its proper divisors (1836457).

7900055 is a wasteful number, since it uses less digits than its factorization.

7900055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42745.

The product of its (nonzero) digits is 1575, while the sum is 26.

The square root of 7900055 is about 2810.7036485549. The cubic root of 7900055 is about 199.1636323209.

The spelling of 7900055 in words is "seven million, nine hundred thousand, fifty-five".