51151711551 has 8 divisors (see below), whose sum is σ = 68204878464. Its totient is φ = 34099842840.

The previous prime is 51151711531. The next prime is 51151711573. The reversal of 51151711551 is 15511715115.

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

It is not a de Polignac number, because 51151711551 - 2⁶ = 51151711487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51151711531) 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, 228555 + ... + 393116.

It is an arithmetic number, because the mean of its divisors is an integer number (8525609808).

Almost surely, 2^51151711551 is an apocalyptic number.

51151711551 is a deficient number, since it is larger than the sum of its proper divisors (17053166913).

51151711551 is a wasteful number, since it uses less digits than its factorization.

51151711551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649101.

The product of its digits is 4375, while the sum is 33.

The spelling of 51151711551 in words is "fifty-one billion, one hundred fifty-one million, seven hundred eleven thousand, five hundred fifty-one".