51522254515 has 8 divisors (see below), whose sum is σ = 62373845088. Its totient is φ = 40853043840.

The previous prime is 51522254423. The next prime is 51522254599. The reversal of 51522254515 is 51545222515.

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

It is not a de Polignac number, because 51522254515 - 2⁷ = 51522254387 is a prime.

It is a Duffinian 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, 45594351 + ... + 45595480.

It is an arithmetic number, because the mean of its divisors is an integer number (7796730636).

Almost surely, 2^51522254515 is an apocalyptic number.

51522254515 is a deficient number, since it is larger than the sum of its proper divisors (10851590573).

51522254515 is a wasteful number, since it uses less digits than its factorization.

51522254515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91189949.

The product of its digits is 100000, while the sum is 37.

The spelling of 51522254515 in words is "fifty-one billion, five hundred twenty-two million, two hundred fifty-four thousand, five hundred fifteen".