30256425 has 36 divisors (see below), whose sum is σ = 56073420. Its totient is φ = 15576960.

The previous prime is 30256411. The next prime is 30256441. The reversal of 30256425 is 52465203.

30256425 = T₁₄₃₀ + T₁₄₃₁ + ... + T₁₄₅₈.

It can be written as a sum of positive squares in 6 ways, for example, as 1996569 + 28259856 = 1413^2 + 5316^2 .

It is not a de Polignac number, because 30256425 - 2⁶ = 30256361 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4207 + ... + 8843.

It is an arithmetic number, because the mean of its divisors is an integer number (1557595).

Almost surely, 2^30256425 is an apocalyptic number.

It is an amenable number.

30256425 is a deficient number, since it is larger than the sum of its proper divisors (25816995).

30256425 is a wasteful number, since it uses less digits than its factorization.

30256425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4682 (or 4674 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 30256425 is about 5500.5840598976. The cubic root of 30256425 is about 311.6060424596.

The spelling of 30256425 in words is "thirty million, two hundred fifty-six thousand, four hundred twenty-five".