30625051 has 2 divisors, whose sum is σ = 30625052. Its totient is φ = 30625050.

The previous prime is 30625039. The next prime is 30625081. The reversal of 30625051 is 15052603.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30625051 - 2¹⁵ = 30592283 is a prime.

It is not a weakly prime, because it can be changed into another prime (30625031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15312525 + 15312526.

It is an arithmetic number, because the mean of its divisors is an integer number (15312526).

Almost surely, 2^30625051 is an apocalyptic number.

30625051 is a deficient number, since it is larger than the sum of its proper divisors (1).

30625051 is an equidigital number, since it uses as much as digits as its factorization.

30625051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 30625051 is about 5533.9905131831. The cubic root of 30625051 is about 312.8664109564.

Adding to 30625051 its reverse (15052603), we get a palindrome (45677654).

The spelling of 30625051 in words is "thirty million, six hundred twenty-five thousand, fifty-one".