325540549 has 2 divisors, whose sum is σ = 325540550. Its totient is φ = 325540548.

The previous prime is 325540513. The next prime is 325540559. The reversal of 325540549 is 945045523.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 179372449 + 146168100 = 13393^2 + 12090^2 .

It is a cyclic number.

It is not a de Polignac number, because 325540549 - 2¹³ = 325532357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (325540559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162770274 + 162770275.

It is an arithmetic number, because the mean of its divisors is an integer number (162770275).

Almost surely, 2^325540549 is an apocalyptic number.

It is an amenable number.

325540549 is a deficient number, since it is larger than the sum of its proper divisors (1).

325540549 is an equidigital number, since it uses as much as digits as its factorization.

325540549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 325540549 is about 18042.7422804850. The cubic root of 325540549 is about 687.9153978414.

The spelling of 325540549 in words is "three hundred twenty-five million, five hundred forty thousand, five hundred forty-nine".