51054505425 has 144 divisors (see below), whose sum is σ = 114210690048. Its totient is φ = 21179836800.

The previous prime is 51054505421. The next prime is 51054505429. The reversal of 51054505425 is 52450545015.

51054505425 is a `hidden beast` number, since 5 + 10 + 54 + 50 + 542 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (51054505421) and next prime (51054505429).

It is not a de Polignac number, because 51054505425 - 2² = 51054505421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51054505425.

It is not an unprimeable number, because it can be changed into a prime (51054505421) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 11137684 + ... + 11142266.

It is an arithmetic number, because the mean of its divisors is an integer number (793129792).

Almost surely, 2^51054505425 is an apocalyptic number.

51054505425 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51054505425 is an abundant number, since it is smaller than the sum of its proper divisors (63156184623).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51054505425 is a wasteful number, since it uses less digits than its factorization.

51054505425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5260 (or 5252 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 36.

The spelling of 51054505425 in words is "fifty-one billion, fifty-four million, five hundred five thousand, four hundred twenty-five".