53406620 has 12 divisors (see below), whose sum is σ = 112153944. Its totient is φ = 21362640.

The previous prime is 53406611. The next prime is 53406649. The reversal of 53406620 is 2660435.

It is a self number, because there is not a number n which added to its sum of digits gives 53406620.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1335146 + ... + 1335185.

It is an arithmetic number, because the mean of its divisors is an integer number (9346162).

Almost surely, 2^53406620 is an apocalyptic number.

It is an amenable number.

53406620 is an abundant number, since it is smaller than the sum of its proper divisors (58747324).

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

53406620 is a wasteful number, since it uses less digits than its factorization.

53406620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2670340 (or 2670338 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 53406620 is about 7307.9833059470. The cubic root of 53406620 is about 376.5867461245.

The spelling of 53406620 in words is "fifty-three million, four hundred six thousand, six hundred twenty".