53167220 has 12 divisors (see below), whose sum is σ = 111651204. Its totient is φ = 21266880.

The previous prime is 53167217. The next prime is 53167229. The reversal of 53167220 is 2276135.

It can be written as a sum of positive squares in 2 ways, for example, as 15147664 + 38019556 = 3892^2 + 6166^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 53167220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53167229) 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, 1329161 + ... + 1329200.

It is an arithmetic number, because the mean of its divisors is an integer number (9304267).

Almost surely, 2^53167220 is an apocalyptic number.

It is an amenable number.

53167220 is an abundant number, since it is smaller than the sum of its proper divisors (58483984).

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

53167220 is a wasteful number, since it uses less digits than its factorization.

53167220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2658370 (or 2658368 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 53167220 is about 7291.5855614537. The cubic root of 53167220 is about 376.0232085418.

The spelling of 53167220 in words is "fifty-three million, one hundred sixty-seven thousand, two hundred twenty".