50897784 has 128 divisors (see below), whose sum is σ = 155750400. Its totient is φ = 13547520.

The previous prime is 50897773. The next prime is 50897797. The reversal of 50897784 is 48779805.

It is a super-2 number, since 2×50897784² = 5181168832221312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 150864 + ... + 151200.

It is an arithmetic number, because the mean of its divisors is an integer number (1216800).

Almost surely, 2^50897784 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 50897784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77875200).

50897784 is an abundant number, since it is smaller than the sum of its proper divisors (104852616).

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

50897784 is a wasteful number, since it uses less digits than its factorization.

50897784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 48.

The square root of 50897784 is about 7134.2682876382. The cubic root of 50897784 is about 370.5950590299.

It can be divided in two parts, 50897 and 784, that added together give a triangular number (51681 = T₃₂₁).

The spelling of 50897784 in words is "fifty million, eight hundred ninety-seven thousand, seven hundred eighty-four".