51515014153 has 4 divisors (see below), whose sum is σ = 51970899348. Its totient is φ = 51059128960.

The previous prime is 51515014121. The next prime is 51515014163. The reversal of 51515014153 is 35141051515.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3331252089 + 48183762064 = 57717^2 + 219508^2 .

It is a cyclic number.

It is not a de Polignac number, because 51515014153 - 2⁵ = 51515014121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51515014163) 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, 227942428 + ... + 227942653.

It is an arithmetic number, because the mean of its divisors is an integer number (12992724837).

Almost surely, 2^51515014153 is an apocalyptic number.

It is an amenable number.

51515014153 is a deficient number, since it is larger than the sum of its proper divisors (455885195).

51515014153 is a wasteful number, since it uses less digits than its factorization.

51515014153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455885194.

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

Adding to 51515014153 its reverse (35141051515), we get a palindrome (86656065668).

The spelling of 51515014153 in words is "fifty-one billion, five hundred fifteen million, fourteen thousand, one hundred fifty-three".