50878620 has 144 divisors (see below), whose sum is σ = 176117760. Its totient is φ = 11778048.

The previous prime is 50878609. The next prime is 50878621. The reversal of 50878620 is 2687805.

Added to its reverse (2687805) it gives a triangular number (53566425 = T₁₀₃₅₀).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50878621) 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, 39141 + ... + 40419.

It is an arithmetic number, because the mean of its divisors is an integer number (1223040).

Almost surely, 2^50878620 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 50878620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88058880).

50878620 is an abundant number, since it is smaller than the sum of its proper divisors (125239140).

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

50878620 is a wasteful number, since it uses less digits than its factorization.

50878620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324 (or 1319 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 50878620 is about 7132.9250661983. The cubic root of 50878620 is about 370.5485411222.

Adding to 50878620 its reverse (2687805), we get a triangular number (53566425 = T₁₀₃₅₀).

The spelling of 50878620 in words is "fifty million, eight hundred seventy-eight thousand, six hundred twenty".