15554321051 has 2 divisors, whose sum is σ = 15554321052. Its totient is φ = 15554321050.

The previous prime is 15554321039. The next prime is 15554321059. The reversal of 15554321051 is 15012345551.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15554321051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15554320999 and 15554321017.

It is not a weakly prime, because it can be changed into another prime (15554321059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7777160525 + 7777160526.

It is an arithmetic number, because the mean of its divisors is an integer number (7777160526).

Almost surely, 2^15554321051 is an apocalyptic number.

15554321051 is a deficient number, since it is larger than the sum of its proper divisors (1).

15554321051 is an equidigital number, since it uses as much as digits as its factorization.

15554321051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15000, while the sum is 32.

The spelling of 15554321051 in words is "fifteen billion, five hundred fifty-four million, three hundred twenty-one thousand, fifty-one".