53655420 has 192 divisors, whose sum is σ = 191471616. Its totient is φ = 10920960.

The previous prime is 53655397. The next prime is 53655461. The reversal of 53655420 is 2455635.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 169102 + ... + 169418.

It is an arithmetic number, because the mean of its divisors is an integer number (997248).

Almost surely, 2^53655420 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 53655420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95735808).

53655420 is an abundant number, since it is smaller than the sum of its proper divisors (137816196).

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

53655420 is a wasteful number, since it uses less digits than its factorization.

53655420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380 (or 378 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 53655420 is about 7324.9860068126. The cubic root of 53655420 is about 377.1706291860.

The spelling of 53655420 in words is "fifty-three million, six hundred fifty-five thousand, four hundred twenty".