5261220 has 48 divisors (see below), whose sum is σ = 16369920. Its totient is φ = 1402848.

The previous prime is 5261203. The next prime is 5261251. The reversal of 5261220 is 221625.

5261220 is a `hidden beast` number, since 52 + 612 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 5261193 and 5261202.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4332 + ... + 5411.

It is an arithmetic number, because the mean of its divisors is an integer number (341040).

Almost surely, 2^5261220 is an apocalyptic number.

It is an amenable number.

5261220 is an abundant number, since it is smaller than the sum of its proper divisors (11108700).

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

5261220 is a wasteful number, since it uses less digits than its factorization.

5261220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9761 (or 9753 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 5261220 is about 2293.7349454547. The cubic root of 5261220 is about 173.9250569056.

Adding to 5261220 its reverse (221625), we get a palindrome (5482845).

The spelling of 5261220 in words is "five million, two hundred sixty-one thousand, two hundred twenty".