30056061 has 16 divisors (see below), whose sum is σ = 46736000. Its totient is φ = 17174304.

The previous prime is 30055997. The next prime is 30056087. The reversal of 30056061 is 16065003.

It is not a de Polignac number, because 30056061 - 2⁶ = 30055997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30056861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13576 + ... + 15633.

It is an arithmetic number, because the mean of its divisors is an integer number (2921000).

Almost surely, 2^30056061 is an apocalyptic number.

It is an amenable number.

30056061 is a deficient number, since it is larger than the sum of its proper divisors (16679939).

30056061 is an equidigital number, since it uses as much as digits as its factorization.

30056061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29233 (or 29219 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 30056061 is about 5482.3408321628. The cubic root of 30056061 is about 310.9166796712.

The spelling of 30056061 in words is "thirty million, fifty-six thousand, sixty-one".