50649312 has 192 divisors, whose sum is σ = 165473280. Its totient is φ = 13246464.

The previous prime is 50649293. The next prime is 50649331. The reversal of 50649312 is 21394605.

50649312 = T₂₇₃ + T₂₇₄ + ... + T₆₈₆.

It is an interprime number because it is at equal distance from previous prime (50649293) and next prime (50649331).

It is a self number, because there is not a number n which added to its sum of digits gives 50649312.

It is a congruent number.

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, 448168 + ... + 448280.

It is an arithmetic number, because the mean of its divisors is an integer number (861840).

Almost surely, 2^50649312 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 50649312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82736640).

50649312 is an abundant number, since it is smaller than the sum of its proper divisors (114823968).

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

50649312 is a wasteful number, since it uses less digits than its factorization.

50649312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 50649312 is about 7116.8330035206. The cubic root of 50649312 is about 369.9910199915.

The spelling of 50649312 in words is "fifty million, six hundred forty-nine thousand, three hundred twelve".