525143249 has 2 divisors, whose sum is σ = 525143250. Its totient is φ = 525143248.

The previous prime is 525143233. The next prime is 525143273. The reversal of 525143249 is 942341525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 469372225 + 55771024 = 21665^2 + 7468^2 .

It is a cyclic number.

It is not a de Polignac number, because 525143249 - 2⁴ = 525143233 is a prime.

It is not a weakly prime, because it can be changed into another prime (525142249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262571624 + 262571625.

It is an arithmetic number, because the mean of its divisors is an integer number (262571625).

Almost surely, 2^525143249 is an apocalyptic number.

It is an amenable number.

525143249 is a deficient number, since it is larger than the sum of its proper divisors (1).

525143249 is an equidigital number, since it uses as much as digits as its factorization.

525143249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 35.

The square root of 525143249 is about 22916.0042110312. The cubic root of 525143249 is about 806.7876884162.

The spelling of 525143249 in words is "five hundred twenty-five million, one hundred forty-three thousand, two hundred forty-nine".