30555549040 has 40 divisors (see below), whose sum is σ = 72206280288. Its totient is φ = 12021853440.

The previous prime is 30555548987. The next prime is 30555549041. The reversal of 30555549040 is 4094555503.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 30555548984 and 30555549002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30555549041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3125812 + ... + 3135571.

Almost surely, 2^30555549040 is an apocalyptic number.

It is an amenable number.

30555549040 is an abundant number, since it is smaller than the sum of its proper divisors (41650731248).

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

30555549040 is a wasteful number, since it uses less digits than its factorization.

30555549040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6261457 (or 6261451 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 40.

The spelling of 30555549040 in words is "thirty billion, five hundred fifty-five million, five hundred forty-nine thousand, forty".