7255399122 has 32 divisors (see below), whose sum is σ = 16155480000. Its totient is φ = 2413610784.

The previous prime is 7255399103. The next prime is 7255399139. The reversal of 7255399122 is 2219935527.

7255399122 is a `hidden beast` number, since 7 + 2 + 5 + 539 + 91 + 22 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107683 + ... + 161574.

It is an arithmetic number, because the mean of its divisors is an integer number (504858750).

Almost surely, 2^7255399122 is an apocalyptic number.

7255399122 is an abundant number, since it is smaller than the sum of its proper divisors (8900080878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7255399122 is a wasteful number, since it uses less digits than its factorization.

7255399122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269767 (or 269761 counting only the distinct ones).

The product of its digits is 340200, while the sum is 45.

The square root of 7255399122 is about 85178.6306652085. The cubic root of 7255399122 is about 1935.9186455879.

The spelling of 7255399122 in words is "seven billion, two hundred fifty-five million, three hundred ninety-nine thousand, one hundred twenty-two".