30490051 has 2 divisors, whose sum is σ = 30490052. Its totient is φ = 30490050.

The previous prime is 30490043. The next prime is 30490063. The reversal of 30490051 is 15009403.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30490051 - 2³ = 30490043 is a prime.

It is not a weakly prime, because it can be changed into another prime (30490091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15245025 + 15245026.

It is an arithmetic number, because the mean of its divisors is an integer number (15245026).

Almost surely, 2^30490051 is an apocalyptic number.

30490051 is a deficient number, since it is larger than the sum of its proper divisors (1).

30490051 is an equidigital number, since it uses as much as digits as its factorization.

30490051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 30490051 is about 5521.7796949897. The cubic root of 30490051 is about 312.4060124818.

Adding to 30490051 its reverse (15009403), we get a palindrome (45499454).

The spelling of 30490051 in words is "thirty million, four hundred ninety thousand, fifty-one".