7507551061 has 2 divisors, whose sum is σ = 7507551062. Its totient is φ = 7507551060.

The previous prime is 7507551047. The next prime is 7507551097. The reversal of 7507551061 is 1601557057.

7507551061 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6624332100 + 883218961 = 81390^2 + 29719^2 .

It is a cyclic number.

It is not a de Polignac number, because 7507551061 - 2¹¹ = 7507549013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7507551061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7507551011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3753775530 + 3753775531.

It is an arithmetic number, because the mean of its divisors is an integer number (3753775531).

Almost surely, 2^7507551061 is an apocalyptic number.

It is an amenable number.

7507551061 is a deficient number, since it is larger than the sum of its proper divisors (1).

7507551061 is an equidigital number, since it uses as much as digits as its factorization.

7507551061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36750, while the sum is 37.

The square root of 7507551061 is about 86646.1254817548. The cubic root of 7507551061 is about 1958.0905203405.

The spelling of 7507551061 in words is "seven billion, five hundred seven million, five hundred fifty-one thousand, sixty-one".