51542925501418 has 16 divisors (see below), whose sum is σ = 84120016405320. Its totient is φ = 23543794676736.

The previous prime is 51542925501407. The next prime is 51542925501469. The reversal of 51542925501418 is 81410552924515.

It can be written as a sum of positive squares in 4 ways, for example, as 31432696481169 + 20110229020249 = 5606487^2 + 4484443^2 .

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, 10218658363 + ... + 10218663406.

Almost surely, 2^{51542925501418} is an apocalyptic number.

51542925501418 is a deficient number, since it is larger than the sum of its proper divisors (32577090903902).

51542925501418 is a wasteful number, since it uses less digits than its factorization.

51542925501418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20437321881.

The product of its (nonzero) digits is 2880000, while the sum is 52.

The spelling of 51542925501418 in words is "fifty-one trillion, five hundred forty-two billion, nine hundred twenty-five million, five hundred one thousand, four hundred eighteen".