51430950 has 168 divisors, whose sum is σ = 153693288. Its totient is φ = 12752640.

The previous prime is 51430943. The next prime is 51430961. The reversal of 51430950 is 5903415.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a zygodrome in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 619609 + ... + 619691.

It is an arithmetic number, because the mean of its divisors is an integer number (914841).

Almost surely, 2^51430950 is an apocalyptic number.

51430950 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 51430950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76846644).

51430950 is an abundant number, since it is smaller than the sum of its proper divisors (102262338).

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

51430950 is a wasteful number, since it uses less digits than its factorization.

51430950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 110 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 51430950 is about 7171.5374920584. The cubic root of 51430950 is about 371.8845895886.

The spelling of 51430950 in words is "fifty-one million, four hundred thirty thousand, nine hundred fifty".