53659212450 has 48 divisors (see below), whose sum is σ = 133230445920. Its totient is φ = 14292392320.

The previous prime is 53659212421. The next prime is 53659212457. The reversal of 53659212450 is 5421295635.

It is a happy number.

It is a super-2 number, since 2×53659212450² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53659212457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80160 + ... + 337259.

It is an arithmetic number, because the mean of its divisors is an integer number (2775634290).

Almost surely, 2^53659212450 is an apocalyptic number.

53659212450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53659212450 is an abundant number, since it is smaller than the sum of its proper divisors (79571233470).

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

53659212450 is a wasteful number, since it uses less digits than its factorization.

53659212450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418291 (or 418286 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 53659212450 in words is "fifty-three billion, six hundred fifty-nine million, two hundred twelve thousand, four hundred fifty".