113055521 has 2 divisors, whose sum is σ = 113055522. Its totient is φ = 113055520.

The previous prime is 113055499. The next prime is 113055541. The reversal of 113055521 is 125550311.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89397025 + 23658496 = 9455^2 + 4864^2 .

It is a cyclic number.

It is not a de Polignac number, because 113055521 - 2¹⁰ = 113054497 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (113055541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56527760 + 56527761.

It is an arithmetic number, because the mean of its divisors is an integer number (56527761).

Almost surely, 2^113055521 is an apocalyptic number.

It is an amenable number.

113055521 is a deficient number, since it is larger than the sum of its proper divisors (1).

113055521 is an equidigital number, since it uses as much as digits as its factorization.

113055521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 113055521 is about 10632.7569802004. The cubic root of 113055521 is about 483.5379800320.

The spelling of 113055521 in words is "one hundred thirteen million, fifty-five thousand, five hundred twenty-one".