53672220 has 120 divisors (see below), whose sum is σ = 192465504. Its totient is φ = 12265344.

The previous prime is 53672183. The next prime is 53672257. The reversal of 53672220 is 2227635.

It is an interprime number because it is at equal distance from previous prime (53672183) and next prime (53672257).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8974 + ... + 13706.

Almost surely, 2^53672220 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 53672220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96232752).

53672220 is an abundant number, since it is smaller than the sum of its proper divisors (138793284).

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

53672220 is a wasteful number, since it uses less digits than its factorization.

53672220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4761 (or 4750 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 53672220 is about 7326.1326769313. The cubic root of 53672220 is about 377.2099902630.

Adding to 53672220 its reverse (2227635), we get a palindrome (55899855).

The spelling of 53672220 in words is "fifty-three million, six hundred seventy-two thousand, two hundred twenty".