235055531 has 2 divisors, whose sum is σ = 235055532. Its totient is φ = 235055530.

The previous prime is 235055473. The next prime is 235055539. The reversal of 235055531 is 135550532.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-235055531 is a prime.

It is a super-2 number, since 2×235055531² = 110502205307383922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 235055494 and 235055503.

It is not a weakly prime, because it can be changed into another prime (235055539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117527765 + 117527766.

It is an arithmetic number, because the mean of its divisors is an integer number (117527766).

Almost surely, 2^235055531 is an apocalyptic number.

235055531 is a deficient number, since it is larger than the sum of its proper divisors (1).

235055531 is an equidigital number, since it uses as much as digits as its factorization.

235055531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11250, while the sum is 29.

The square root of 235055531 is about 15331.5208312809. The cubic root of 235055531 is about 617.1491828428.

The spelling of 235055531 in words is "two hundred thirty-five million, fifty-five thousand, five hundred thirty-one".