13551051451 has 4 divisors (see below), whose sum is σ = 15486915952. Its totient is φ = 11615186952.

The previous prime is 13551051391. The next prime is 13551051461. The reversal of 13551051451 is 15415015531.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15415015531 = 12979 ⋅1187689.

It is a cyclic number.

It is not a de Polignac number, because 13551051451 - 2⁷ = 13551051323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13551051461) 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 in 3 ways as a sum of consecutive naturals, for example, 967932240 + ... + 967932253.

It is an arithmetic number, because the mean of its divisors is an integer number (3871728988).

Almost surely, 2^13551051451 is an apocalyptic number.

13551051451 is a deficient number, since it is larger than the sum of its proper divisors (1935864501).

13551051451 is an equidigital number, since it uses as much as digits as its factorization.

13551051451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1935864500.

The product of its (nonzero) digits is 7500, while the sum is 31.

Adding to 13551051451 its reverse (15415015531), we get a palindrome (28966066982).

The spelling of 13551051451 in words is "thirteen billion, five hundred fifty-one million, fifty-one thousand, four hundred fifty-one".