53214420 has 192 divisors, whose sum is σ = 187246080. Its totient is φ = 11010048.

The previous prime is 53214361. The next prime is 53214431. The reversal of 53214420 is 2441235.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 206932 + ... + 207188.

It is an arithmetic number, because the mean of its divisors is an integer number (975240).

Almost surely, 2^53214420 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 53214420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93623040).

53214420 is an abundant number, since it is smaller than the sum of its proper divisors (134031660).

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

53214420 is a wasteful number, since it uses less digits than its factorization.

53214420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322 (or 320 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 53214420 is about 7294.8214508650. The cubic root of 53214420 is about 376.1344490513.

Adding to 53214420 its reverse (2441235), we get a palindrome (55655655).

The spelling of 53214420 in words is "fifty-three million, two hundred fourteen thousand, four hundred twenty".