51401044950 has 48 divisors (see below), whose sum is σ = 127534600656. Its totient is φ = 13700492800.

The previous prime is 51401044949. The next prime is 51401044967. The reversal of 51401044950 is 5944010415.

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, 243370 + ... + 402530.

It is an arithmetic number, because the mean of its divisors is an integer number (2656970847).

Almost surely, 2^51401044950 is an apocalyptic number.

51401044950 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51401044950 is an abundant number, since it is smaller than the sum of its proper divisors (76133555706).

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

51401044950 is a wasteful number, since it uses less digits than its factorization.

51401044950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161329 (or 161324 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The spelling of 51401044950 in words is "fifty-one billion, four hundred one million, forty-four thousand, nine hundred fifty".