30425287 has 2 divisors, whose sum is σ = 30425288. Its totient is φ = 30425286.

The previous prime is 30425281. The next prime is 30425323. The reversal of 30425287 is 78252403.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30425287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30425281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15212643 + 15212644.

It is an arithmetic number, because the mean of its divisors is an integer number (15212644).

Almost surely, 2^30425287 is an apocalyptic number.

30425287 is a deficient number, since it is larger than the sum of its proper divisors (1).

30425287 is an equidigital number, since it uses as much as digits as its factorization.

30425287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 30425287 is about 5515.9121639127. The cubic root of 30425287 is about 312.1846615310.

The spelling of 30425287 in words is "thirty million, four hundred twenty-five thousand, two hundred eighty-seven".