7125552111 has 4 divisors (see below), whose sum is σ = 9500736152. Its totient is φ = 4750368072.

The previous prime is 7125552107. The next prime is 7125552113. The reversal of 7125552111 is 1112555217.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 7125552111 - 2² = 7125552107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7125552113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1187592016 + ... + 1187592021.

It is an arithmetic number, because the mean of its divisors is an integer number (2375184038).

Almost surely, 2^7125552111 is an apocalyptic number.

7125552111 is a deficient number, since it is larger than the sum of its proper divisors (2375184041).

7125552111 is a wasteful number, since it uses less digits than its factorization.

7125552111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2375184040.

The product of its digits is 3500, while the sum is 30.

The square root of 7125552111 is about 84412.9854406299. The cubic root of 7125552111 is about 1924.3002672741.

The spelling of 7125552111 in words is "seven billion, one hundred twenty-five million, five hundred fifty-two thousand, one hundred eleven".