30555401390 has 16 divisors (see below), whose sum is σ = 56278786608. Its totient is φ = 11937924096.

The previous prime is 30555401363. The next prime is 30555401411. The reversal of 30555401390 is 9310455503.

It is a self number, because there is not a number n which added to its sum of digits gives 30555401390.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35529107 + ... + 35529966.

It is an arithmetic number, because the mean of its divisors is an integer number (3517424163).

Almost surely, 2^30555401390 is an apocalyptic number.

30555401390 is a deficient number, since it is larger than the sum of its proper divisors (25723385218).

30555401390 is a wasteful number, since it uses less digits than its factorization.

30555401390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71059123.

The product of its (nonzero) digits is 40500, while the sum is 35.

Adding to 30555401390 its reverse (9310455503), we get a palindrome (39865856893).

The spelling of 30555401390 in words is "thirty billion, five hundred fifty-five million, four hundred one thousand, three hundred ninety".