30551251421005 has 64 divisors (see below), whose sum is σ = 44169593518080. Its totient is φ = 19850476287744.

The previous prime is 30551251420981. The next prime is 30551251421023. The reversal of 30551251421005 is 50012415215503.

It is a cyclic number.

It is not a de Polignac number, because 30551251421005 - 2¹¹ = 30551251418957 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6306834 + ... + 10043836.

It is an arithmetic number, because the mean of its divisors is an integer number (690149898720).

Almost surely, 2^{30551251421005} is an apocalyptic number.

30551251421005 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30551251421005 is a deficient number, since it is larger than the sum of its proper divisors (13618342097075).

30551251421005 is a wasteful number, since it uses less digits than its factorization.

30551251421005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3737218.

The product of its (nonzero) digits is 30000, while the sum is 34.

Adding to 30551251421005 its reverse (50012415215503), we get a palindrome (80563666636508).

The spelling of 30551251421005 in words is "thirty trillion, five hundred fifty-one billion, two hundred fifty-one million, four hundred twenty-one thousand, five".