51215415153 has 8 divisors (see below), whose sum is σ = 78042537408. Its totient is φ = 29265951504.

The previous prime is 51215415131. The next prime is 51215415161. The reversal of 51215415153 is 35151451215.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51215415153 - 2¹² = 51215411057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51215415103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1219414626 + ... + 1219414667.

It is an arithmetic number, because the mean of its divisors is an integer number (9755317176).

Almost surely, 2^51215415153 is an apocalyptic number.

It is an amenable number.

51215415153 is a deficient number, since it is larger than the sum of its proper divisors (26827122255).

51215415153 is a wasteful number, since it uses less digits than its factorization.

51215415153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2438829303.

The product of its digits is 15000, while the sum is 33.

Adding to 51215415153 its reverse (35151451215), we get a palindrome (86366866368).

The spelling of 51215415153 in words is "fifty-one billion, two hundred fifteen million, four hundred fifteen thousand, one hundred fifty-three".