30757780530055 has 4 divisors (see below), whose sum is σ = 36909336636072. Its totient is φ = 24606224424040.

The previous prime is 30757780530053. The next prime is 30757780530089. The reversal of 30757780530055 is 55003508775703.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 30757780530055 - 2¹ = 30757780530053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30757780529978 and 30757780530005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30757780530053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3075778053001 + ... + 3075778053010.

It is an arithmetic number, because the mean of its divisors is an integer number (9227334159018).

Almost surely, 2^{30757780530055} is an apocalyptic number.

30757780530055 is a deficient number, since it is larger than the sum of its proper divisors (6151556106017).

30757780530055 is an equidigital number, since it uses as much as digits as its factorization.

30757780530055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6151556106016.

The product of its (nonzero) digits is 15435000, while the sum is 55.

The spelling of 30757780530055 in words is "thirty trillion, seven hundred fifty-seven billion, seven hundred eighty million, five hundred thirty thousand, fifty-five".