51152401511 has 4 divisors (see below), whose sum is σ = 53376418992. Its totient is φ = 48928384032.

The previous prime is 51152401463. The next prime is 51152401541. The reversal of 51152401511 is 11510425115.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51152401511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51152401541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1112008706 + ... + 1112008751.

It is an arithmetic number, because the mean of its divisors is an integer number (13344104748).

Almost surely, 2^51152401511 is an apocalyptic number.

51152401511 is a deficient number, since it is larger than the sum of its proper divisors (2224017481).

51152401511 is a wasteful number, since it uses less digits than its factorization.

51152401511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2224017480.

The product of its (nonzero) digits is 1000, while the sum is 26.

Adding to 51152401511 its reverse (11510425115), we get a palindrome (62662826626).

The spelling of 51152401511 in words is "fifty-one billion, one hundred fifty-two million, four hundred one thousand, five hundred eleven".