51515452255 has 8 divisors (see below), whose sum is σ = 61830953712. Its totient is φ = 41204087808.

The previous prime is 51515452231. The next prime is 51515452301. The reversal of 51515452255 is 55225451515.

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 51515452255 - 2⁷ = 51515452127 is a prime.

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, 1006789 + ... + 1056718.

It is an arithmetic number, because the mean of its divisors is an integer number (7728869214).

Almost surely, 2^51515452255 is an apocalyptic number.

51515452255 is a deficient number, since it is larger than the sum of its proper divisors (10315501457).

51515452255 is a wasteful number, since it uses less digits than its factorization.

51515452255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2068505.

The product of its digits is 250000, while the sum is 40.

The spelling of 51515452255 in words is "fifty-one billion, five hundred fifteen million, four hundred fifty-two thousand, two hundred fifty-five".