30052780557 has 16 divisors (see below), whose sum is σ = 42578462592. Its totient is φ = 18789532160.

The previous prime is 30052780553. The next prime is 30052780579. The reversal of 30052780557 is 75508725003.

It is a cyclic number.

It is not a de Polignac number, because 30052780557 - 2² = 30052780553 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30052780553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1034193 + ... + 1062854.

It is an arithmetic number, because the mean of its divisors is an integer number (2661153912).

Almost surely, 2^30052780557 is an apocalyptic number.

It is an amenable number.

30052780557 is a deficient number, since it is larger than the sum of its proper divisors (12525682035).

30052780557 is a wasteful number, since it uses less digits than its factorization.

30052780557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097348.

The product of its (nonzero) digits is 294000, while the sum is 42.

The spelling of 30052780557 in words is "thirty billion, fifty-two million, seven hundred eighty thousand, five hundred fifty-seven".