50561380 has 12 divisors (see below), whose sum is σ = 106178940. Its totient is φ = 20224544.

The previous prime is 50561377. The next prime is 50561387. The reversal of 50561380 is 8316505.

It can be written as a sum of positive squares in 2 ways, for example, as 21141604 + 29419776 = 4598^2 + 5424^2 .

It is not an unprimeable number, because it can be changed into a prime (50561387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1264015 + ... + 1264054.

It is an arithmetic number, because the mean of its divisors is an integer number (8848245).

Almost surely, 2^50561380 is an apocalyptic number.

It is an amenable number.

50561380 is an abundant number, since it is smaller than the sum of its proper divisors (55617560).

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

50561380 is a wasteful number, since it uses less digits than its factorization.

50561380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2528078 (or 2528076 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 50561380 is about 7110.6525720218. The cubic root of 50561380 is about 369.7767828205.

Adding to 50561380 its reverse (8316505), we get a palindrome (58877885).

The spelling of 50561380 in words is "fifty million, five hundred sixty-one thousand, three hundred eighty".