30553193898 has 32 divisors (see below), whose sum is σ = 67916841600. Its totient is φ = 10181269728.

The previous prime is 30553193897. The next prime is 30553193929. The reversal of 30553193898 is 89839135503.

It is a happy number.

30553193898 is a `hidden beast` number, since 3 + 0 + 553 + 1 + 9 + 3 + 89 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (30553193897) 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, 93990 + ... + 264462.

It is an arithmetic number, because the mean of its divisors is an integer number (2122401300).

Almost surely, 2^30553193898 is an apocalyptic number.

30553193898 is an abundant number, since it is smaller than the sum of its proper divisors (37363647702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30553193898 is a wasteful number, since it uses less digits than its factorization.

30553193898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173803 (or 173797 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 54.

The spelling of 30553193898 in words is "thirty billion, five hundred fifty-three million, one hundred ninety-three thousand, eight hundred ninety-eight".