30405423525 has 24 divisors (see below), whose sum is σ = 53227378944. Its totient is φ = 15262329600.

The previous prime is 30405423487. The next prime is 30405423533. The reversal of 30405423525 is 52532450403.

It is a happy number.

It is not a de Polignac number, because 30405423525 - 2⁷ = 30405423397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11922421 + ... + 11924970.

It is an arithmetic number, because the mean of its divisors is an integer number (2217807456).

Almost surely, 2^30405423525 is an apocalyptic number.

It is an amenable number.

30405423525 is a deficient number, since it is larger than the sum of its proper divisors (22821955419).

30405423525 is a wasteful number, since it uses less digits than its factorization.

30405423525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23847421 (or 23847416 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 33.

Adding to 30405423525 its reverse (52532450403), we get a palindrome (82937873928).

The spelling of 30405423525 in words is "thirty billion, four hundred five million, four hundred twenty-three thousand, five hundred twenty-five".