53333499640 has 32 divisors (see below), whose sum is σ = 120007672560. Its totient is φ = 21332102400.

The previous prime is 53333499631. The next prime is 53333499641. The reversal of 53333499640 is 4699433335.

It is a happy number.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53333499641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 887755 + ... + 945925.

Almost surely, 2^53333499640 is an apocalyptic number.

It is an amenable number.

53333499640 is an abundant number, since it is smaller than the sum of its proper divisors (66674172920).

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

53333499640 is a wasteful number, since it uses less digits than its factorization.

53333499640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81103 (or 81099 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 49.

The spelling of 53333499640 in words is "fifty-three billion, three hundred thirty-three million, four hundred ninety-nine thousand, six hundred forty".