30455521051 has 4 divisors (see below), whose sum is σ = 30473469432. Its totient is φ = 30437572672.

The previous prime is 30455521043. The next prime is 30455521073. The reversal of 30455521051 is 15012555403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15012555403 = 86353 ⋅173851.

It is a cyclic number.

It is not a de Polignac number, because 30455521051 - 2³ = 30455521043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30455521091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8971645 + ... + 8975038.

It is an arithmetic number, because the mean of its divisors is an integer number (7618367358).

Almost surely, 2^30455521051 is an apocalyptic number.

30455521051 is a deficient number, since it is larger than the sum of its proper divisors (17948381).

30455521051 is a wasteful number, since it uses less digits than its factorization.

30455521051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17948380.

The product of its (nonzero) digits is 15000, while the sum is 31.

The spelling of 30455521051 in words is "thirty billion, four hundred fifty-five million, five hundred twenty-one thousand, fifty-one".