51545205150 has 48 divisors (see below), whose sum is σ = 127880338944. Its totient is φ = 13740202080.

The previous prime is 51545205149. The next prime is 51545205167. The reversal of 51545205150 is 5150254515.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 342579 + ... + 469521.

It is an arithmetic number, because the mean of its divisors is an integer number (2664173728).

Almost surely, 2^51545205150 is an apocalyptic number.

51545205150 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51545205150 is an abundant number, since it is smaller than the sum of its proper divisors (76335133794).

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

51545205150 is a wasteful number, since it uses less digits than its factorization.

51545205150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129665 (or 129660 counting only the distinct ones).

The product of its (nonzero) digits is 25000, while the sum is 33.

Adding to 51545205150 its reverse (5150254515), we get a palindrome (56695459665).

The spelling of 51545205150 in words is "fifty-one billion, five hundred forty-five million, two hundred five thousand, one hundred fifty".