51140422511 has 8 divisors (see below), whose sum is σ = 51871282848. Its totient is φ = 50409856000.

The previous prime is 51140422507. The next prime is 51140422537. The reversal of 51140422511 is 11522404115.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 51140422511 - 2² = 51140422507 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 (51140422561) 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, 289871 + ... + 431631.

It is an arithmetic number, because the mean of its divisors is an integer number (6483910356).

Almost surely, 2^51140422511 is an apocalyptic number.

51140422511 is a deficient number, since it is larger than the sum of its proper divisors (730860337).

51140422511 is a wasteful number, since it uses less digits than its factorization.

51140422511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146913.

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 51140422511 its reverse (11522404115), we get a palindrome (62662826626).

The spelling of 51140422511 in words is "fifty-one billion, one hundred forty million, four hundred twenty-two thousand, five hundred eleven".