50556420 has 96 divisors (see below), whose sum is σ = 158336640. Its totient is φ = 13392000.

The previous prime is 50556371. The next prime is 50556421. The reversal of 50556420 is 2465505.

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

It is not an unprimeable number, because it can be changed into a prime (50556421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135354 + ... + 135726.

It is an arithmetic number, because the mean of its divisors is an integer number (1649340).

Almost surely, 2^50556420 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 50556420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79168320).

50556420 is an abundant number, since it is smaller than the sum of its proper divisors (107780220).

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

50556420 is a wasteful number, since it uses less digits than its factorization.

50556420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642 (or 634 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 50556420 is about 7110.3037909783. The cubic root of 50556420 is about 369.7646908983.

The spelling of 50556420 in words is "fifty million, five hundred fifty-six thousand, four hundred twenty".