51054502020 has 96 divisors (see below), whose sum is σ = 149585802240. Its totient is φ = 12994836480.

The previous prime is 51054501991. The next prime is 51054502049. The reversal of 51054502020 is 2020545015.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (51054501991) and next prime (51054502049).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52225 + ... + 323784.

It is an arithmetic number, because the mean of its divisors is an integer number (1558185440).

Almost surely, 2^51054502020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51054502020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74792901120).

51054502020 is an abundant number, since it is smaller than the sum of its proper divisors (98531300220).

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

51054502020 is a wasteful number, since it uses less digits than its factorization.

51054502020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376125 (or 376123 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The spelling of 51054502020 in words is "fifty-one billion, fifty-four million, five hundred two thousand, twenty".