53405660 has 48 divisors (see below), whose sum is σ = 139829760. Its totient is φ = 16645440.

The previous prime is 53405629. The next prime is 53405663. The reversal of 53405660 is 6650435.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53405663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15800 + ... + 18879.

It is an arithmetic number, because the mean of its divisors is an integer number (2913120).

Almost surely, 2^53405660 is an apocalyptic number.

It is an amenable number.

53405660 is an abundant number, since it is smaller than the sum of its proper divisors (86424100).

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

53405660 is a wasteful number, since it uses less digits than its factorization.

53405660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34706 (or 34704 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 53405660 is about 7307.9176240568. The cubic root of 53405660 is about 376.5844896911.

The spelling of 53405660 in words is "fifty-three million, four hundred five thousand, six hundred sixty".