7721453053 has 2 divisors, whose sum is σ = 7721453054. Its totient is φ = 7721453052.

The previous prime is 7721453041. The next prime is 7721453099. The reversal of 7721453053 is 3503541277.

7721453053 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., 4843881604 + 2877571449 = 69598^2 + 53643^2 .

It is a cyclic number.

It is not a de Polignac number, because 7721453053 - 2²¹ = 7719355901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7721453153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3860726526 + 3860726527.

It is an arithmetic number, because the mean of its divisors is an integer number (3860726527).

Almost surely, 2^7721453053 is an apocalyptic number.

It is an amenable number.

7721453053 is a deficient number, since it is larger than the sum of its proper divisors (1).

7721453053 is an equidigital number, since it uses as much as digits as its factorization.

7721453053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 88200, while the sum is 37.

The square root of 7721453053 is about 87871.7989630348. The cubic root of 7721453053 is about 1976.5130148753.

The spelling of 7721453053 in words is "seven billion, seven hundred twenty-one million, four hundred fifty-three thousand, fifty-three".