30525493 has 2 divisors, whose sum is σ = 30525494. Its totient is φ = 30525492.

The previous prime is 30525463. The next prime is 30525497. The reversal of 30525493 is 39452503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23251684 + 7273809 = 4822^2 + 2697^2 .

It is a cyclic number.

It is not a de Polignac number, because 30525493 - 2¹³ = 30517301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30525497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15262746 + 15262747.

It is an arithmetic number, because the mean of its divisors is an integer number (15262747).

Almost surely, 2^30525493 is an apocalyptic number.

It is an amenable number.

30525493 is a deficient number, since it is larger than the sum of its proper divisors (1).

30525493 is an equidigital number, since it uses as much as digits as its factorization.

30525493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 30525493 is about 5524.9880542857. The cubic root of 30525493 is about 312.5270137714.

Adding to 30525493 its reverse (39452503), we get a palindrome (69977996).

The spelling of 30525493 in words is "thirty million, five hundred twenty-five thousand, four hundred ninety-three".