7550550481 has 2 divisors, whose sum is σ = 7550550482. Its totient is φ = 7550550480.

The previous prime is 7550550479. The next prime is 7550550571. The reversal of 7550550481 is 1840550557.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3858894400 + 3691656081 = 62120^2 + 60759^2 .

It is a cyclic number.

It is not a de Polignac number, because 7550550481 - 2¹ = 7550550479 is a prime.

It is a super-2 number, since 2×7550550481² (a number of 21 digits) contains 22 as substring.

Together with 7550550479, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (7550550401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3775275240 + 3775275241.

It is an arithmetic number, because the mean of its divisors is an integer number (3775275241).

Almost surely, 2^7550550481 is an apocalyptic number.

It is an amenable number.

7550550481 is a deficient number, since it is larger than the sum of its proper divisors (1).

7550550481 is an equidigital number, since it uses as much as digits as its factorization.

7550550481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140000, while the sum is 40.

The square root of 7550550481 is about 86893.9035893773. The cubic root of 7550550481 is about 1961.8217202213.

The spelling of 7550550481 in words is "seven billion, five hundred fifty million, five hundred fifty thousand, four hundred eighty-one".