30553193987 has 2 divisors, whose sum is σ = 30553193988. Its totient is φ = 30553193986.

The previous prime is 30553193939. The next prime is 30553193999. The reversal of 30553193987 is 78939135503.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30553193987 - 2⁸ = 30553193731 is a prime.

It is not a weakly prime, because it can be changed into another prime (30553193387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15276596993 + 15276596994.

It is an arithmetic number, because the mean of its divisors is an integer number (15276596994).

Almost surely, 2^30553193987 is an apocalyptic number.

30553193987 is a deficient number, since it is larger than the sum of its proper divisors (1).

30553193987 is an equidigital number, since it uses as much as digits as its factorization.

30553193987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3061800, while the sum is 53.

The spelling of 30553193987 in words is "thirty billion, five hundred fifty-three million, one hundred ninety-three thousand, nine hundred eighty-seven".