53531912 has 96 divisors (see below), whose sum is σ = 128352600. Its totient is φ = 20772864.

The previous prime is 53531893. The next prime is 53531957. The reversal of 53531912 is 21913535.

It can be written as a sum of positive squares in 4 ways, for example, as 44970436 + 8561476 = 6706^2 + 2926^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 193118 + ... + 193394.

Almost surely, 2^53531912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53531912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64176300).

53531912 is an abundant number, since it is smaller than the sum of its proper divisors (74820688).

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

53531912 is a wasteful number, since it uses less digits than its factorization.

53531912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 332 counting only the distinct ones).

The product of its digits is 4050, while the sum is 29.

The square root of 53531912 is about 7316.5505533687. The cubic root of 53531912 is about 376.8810071309.

The spelling of 53531912 in words is "fifty-three million, five hundred thirty-one thousand, nine hundred twelve".