53821912 has 32 divisors (see below), whose sum is σ = 105210000. Its totient is φ = 25780608.

The previous prime is 53821891. The next prime is 53821913. The reversal of 53821912 is 21912835.

It is a super-2 number, since 2×53821912² = 5793596422671488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53821913) 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, 31414 + ... + 33082.

Almost surely, 2^53821912 is an apocalyptic number.

It is an amenable number.

53821912 is a deficient number, since it is larger than the sum of its proper divisors (51388088).

53821912 is a wasteful number, since it uses less digits than its factorization.

53821912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843 (or 1839 counting only the distinct ones).

The product of its digits is 4320, while the sum is 31.

The square root of 53821912 is about 7336.3418677158. The cubic root of 53821912 is about 377.5603447236.

The spelling of 53821912 in words is "fifty-three million, eight hundred twenty-one thousand, nine hundred twelve".