53370220 has 48 divisors (see below), whose sum is σ = 117734400. Its totient is φ = 20295360.

The previous prime is 53370211. The next prime is 53370223. The reversal of 53370220 is 2207335.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 53370191 and 53370200.

It is not an unprimeable number, because it can be changed into a prime (53370223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35851 + ... + 37309.

It is an arithmetic number, because the mean of its divisors is an integer number (2452800).

Almost surely, 2^53370220 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 53370220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58867200).

53370220 is an abundant number, since it is smaller than the sum of its proper divisors (64364180).

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

53370220 is a wasteful number, since it uses less digits than its factorization.

53370220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1558 (or 1556 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 22.

The square root of 53370220 is about 7305.4924543113. The cubic root of 53370220 is about 376.5011707597.

Adding to 53370220 its reverse (2207335), we get a palindrome (55577555).

The spelling of 53370220 in words is "fifty-three million, three hundred seventy thousand, two hundred twenty".