249325541 has 2 divisors, whose sum is σ = 249325542. Its totient is φ = 249325540.

The previous prime is 249325513. The next prime is 249325597. The reversal of 249325541 is 145523942.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142802500 + 106523041 = 11950^2 + 10321^2 .

It is a cyclic number.

It is not a de Polignac number, because 249325541 - 2⁶ = 249325477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249315541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124662770 + 124662771.

It is an arithmetic number, because the mean of its divisors is an integer number (124662771).

Almost surely, 2^249325541 is an apocalyptic number.

It is an amenable number.

249325541 is a deficient number, since it is larger than the sum of its proper divisors (1).

249325541 is an equidigital number, since it uses as much as digits as its factorization.

249325541 is an evil number, because the sum of its binary digits is even.

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

The square root of 249325541 is about 15790.0456300797. The cubic root of 249325541 is about 629.3935046712.

The spelling of 249325541 in words is "two hundred forty-nine million, three hundred twenty-five thousand, five hundred forty-one".