30305015554542 has 64 divisors (see below), whose sum is σ = 62593675119360. Its totient is φ = 9775428655104.

The previous prime is 30305015554511. The next prime is 30305015554553. The reversal of 30305015554542 is 24545551050303.

It is a super-2 number, since 2×30305015554542² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30305015554494 and 30305015554503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 412147393 + ... + 412220915.

It is an arithmetic number, because the mean of its divisors is an integer number (978026173740).

Almost surely, 2^{30305015554542} is an apocalyptic number.

30305015554542 is an abundant number, since it is smaller than the sum of its proper divisors (32288659564818).

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

30305015554542 is a wasteful number, since it uses less digits than its factorization.

30305015554542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88337.

The product of its (nonzero) digits is 900000, while the sum is 42.

The spelling of 30305015554542 in words is "thirty trillion, three hundred five billion, fifteen million, five hundred fifty-four thousand, five hundred forty-two".