53866853500 has 48 divisors (see below), whose sum is σ = 117669176352. Its totient is φ = 21542352000.

The previous prime is 53866853473. The next prime is 53866853567. The reversal of 53866853500 is 535866835.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3698232 + ... + 3712768.

It is an arithmetic number, because the mean of its divisors is an integer number (2451441174).

Almost surely, 2^53866853500 is an apocalyptic number.

53866853500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53866853500 is an abundant number, since it is smaller than the sum of its proper divisors (63802322852).

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

53866853500 is a wasteful number, since it uses less digits than its factorization.

53866853500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21967 (or 21955 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 49.

The spelling of 53866853500 in words is "fifty-three billion, eight hundred sixty-six million, eight hundred fifty-three thousand, five hundred".