2291532553 has 2 divisors, whose sum is σ = 2291532554. Its totient is φ = 2291532552.

The previous prime is 2291532547. The next prime is 2291532583. The reversal of 2291532553 is 3552351922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2221425424 + 70107129 = 47132^2 + 8373^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2291532553 is a prime.

It is a super-2 number, since 2×2291532553² = 10502242882917395618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2291532583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1145766276 + 1145766277.

It is an arithmetic number, because the mean of its divisors is an integer number (1145766277).

Almost surely, 2^2291532553 is an apocalyptic number.

It is an amenable number.

2291532553 is a deficient number, since it is larger than the sum of its proper divisors (1).

2291532553 is an equidigital number, since it uses as much as digits as its factorization.

2291532553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81000, while the sum is 37.

The square root of 2291532553 is about 47869.9545957587. The cubic root of 2291532553 is about 1318.3842629357.

The spelling of 2291532553 in words is "two billion, two hundred ninety-one million, five hundred thirty-two thousand, five hundred fifty-three".