30505254020530 has 16 divisors (see below), whose sum is σ = 58139425310040. Its totient is φ = 11484330925312.

The previous prime is 30505254020503. The next prime is 30505254020539. The reversal of 30505254020530 is 3502045250503.

It can be written as a sum of positive squares in 4 ways, for example, as 28679655804921 + 1825598215609 = 5355339^2 + 1351147^2 .

It is a super-2 number, since 2×30505254020530² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (30505254020539) 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, 89721335185 + ... + 89721335524.

Almost surely, 2^{30505254020530} is an apocalyptic number.

30505254020530 is a deficient number, since it is larger than the sum of its proper divisors (27634171289510).

30505254020530 is a wasteful number, since it uses less digits than its factorization.

30505254020530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179442670733.

The product of its (nonzero) digits is 90000, while the sum is 34.

The spelling of 30505254020530 in words is "thirty trillion, five hundred five billion, two hundred fifty-four million, twenty thousand, five hundred thirty".