51123255455 has 8 divisors (see below), whose sum is σ = 62353610304. Its totient is φ = 40228135200.

The previous prime is 51123255409. The next prime is 51123255473. The reversal of 51123255455 is 55455232115.

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

It is not a de Polignac number, because 51123255455 - 2¹⁴ = 51123239071 is a prime.

It is a super-2 number, since 2×51123255455² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83808311 + ... + 83808920.

It is an arithmetic number, because the mean of its divisors is an integer number (7794201288).

Almost surely, 2^51123255455 is an apocalyptic number.

51123255455 is a deficient number, since it is larger than the sum of its proper divisors (11230354849).

51123255455 is a wasteful number, since it uses less digits than its factorization.

51123255455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167617297.

The product of its digits is 150000, while the sum is 38.

The spelling of 51123255455 in words is "fifty-one billion, one hundred twenty-three million, two hundred fifty-five thousand, four hundred fifty-five".