553011881 has 2 divisors, whose sum is σ = 553011882. Its totient is φ = 553011880.

The previous prime is 553011859. The next prime is 553011923. The reversal of 553011881 is 188110355.

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., 531072025 + 21939856 = 23045^2 + 4684^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-553011881 is a prime.

It is a super-2 number, since 2×553011881² = 611644281054316322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (553010881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276505940 + 276505941.

It is an arithmetic number, because the mean of its divisors is an integer number (276505941).

Almost surely, 2^553011881 is an apocalyptic number.

It is an amenable number.

553011881 is a deficient number, since it is larger than the sum of its proper divisors (1).

553011881 is an equidigital number, since it uses as much as digits as its factorization.

553011881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 32.

The square root of 553011881 is about 23516.2046470088. The cubic root of 553011881 is about 820.8141235274.

The spelling of 553011881 in words is "five hundred fifty-three million, eleven thousand, eight hundred eighty-one".