15530254451 has 2 divisors, whose sum is σ = 15530254452. Its totient is φ = 15530254450.

The previous prime is 15530254429. The next prime is 15530254499. The reversal of 15530254451 is 15445203551.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15530254451 is a prime.

It is a super-2 number, since 2×15530254451² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (15530254151) 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, 7765127225 + 7765127226.

It is an arithmetic number, because the mean of its divisors is an integer number (7765127226).

Almost surely, 2^15530254451 is an apocalyptic number.

15530254451 is a deficient number, since it is larger than the sum of its proper divisors (1).

15530254451 is an equidigital number, since it uses as much as digits as its factorization.

15530254451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 15530254451 in words is "fifteen billion, five hundred thirty million, two hundred fifty-four thousand, four hundred fifty-one".