30505250550 has 24 divisors (see below), whose sum is σ = 75653021736. Its totient is φ = 8134733440.

The previous prime is 30505250527. The next prime is 30505250579. The reversal of 30505250550 is 5505250503.

It is a super-2 number, since 2×30505250550² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101684019 + ... + 101684318.

It is an arithmetic number, because the mean of its divisors is an integer number (3152209239).

Almost surely, 2^30505250550 is an apocalyptic number.

30505250550 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30505250550 is an abundant number, since it is smaller than the sum of its proper divisors (45147771186).

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

30505250550 is a wasteful number, since it uses less digits than its factorization.

30505250550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203368352 (or 203368347 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 30.

The spelling of 30505250550 in words is "thirty billion, five hundred five million, two hundred fifty thousand, five hundred fifty".