651424950 has 96 divisors (see below), whose sum is σ = 1958267520. Its totient is φ = 157917600.

The previous prime is 651424877. The next prime is 651424951. The reversal of 651424950 is 59424156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651424951) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7084 + ... + 36783.

It is an arithmetic number, because the mean of its divisors is an integer number (20398620).

Almost surely, 2^651424950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 651424950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (979133760).

651424950 is an abundant number, since it is smaller than the sum of its proper divisors (1306842570).

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

651424950 is a wasteful number, since it uses less digits than its factorization.

651424950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43899 (or 43888 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 651424950 is about 25523.0278376215. The cubic root of 651424950 is about 866.8716420171.

The spelling of 651424950 in words is "six hundred fifty-one million, four hundred twenty-four thousand, nine hundred fifty".