525455243 has 2 divisors, whose sum is σ = 525455244. Its totient is φ = 525455242.

The previous prime is 525455233. The next prime is 525455251. The reversal of 525455243 is 342554525.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 525455243 - 2¹⁶ = 525389707 is a prime.

It is a super-2 number, since 2×525455243² = 552206424792378098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (525455213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262727621 + 262727622.

It is an arithmetic number, because the mean of its divisors is an integer number (262727622).

Almost surely, 2^525455243 is an apocalyptic number.

525455243 is a deficient number, since it is larger than the sum of its proper divisors (1).

525455243 is an equidigital number, since it uses as much as digits as its factorization.

525455243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120000, while the sum is 35.

The square root of 525455243 is about 22922.8105388497. The cubic root of 525455243 is about 806.9474309159.

The spelling of 525455243 in words is "five hundred twenty-five million, four hundred fifty-five thousand, two hundred forty-three".