53531064 has 32 divisors (see below), whose sum is σ = 148698000. Its totient is φ = 17843616.

The previous prime is 53531063. The next prime is 53531077. The reversal of 53531064 is 46013535.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53531063) 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, 123699 + ... + 124130.

Almost surely, 2^53531064 is an apocalyptic number.

53531064 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

53531064 is an abundant number, since it is smaller than the sum of its proper divisors (95166936).

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

53531064 is a wasteful number, since it uses less digits than its factorization.

53531064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247844 (or 247834 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 53531064 is about 7316.4926023334. The cubic root of 53531064 is about 376.8790170607.

Adding to 53531064 its reverse (46013535), we get a palindrome (99544599).

The spelling of 53531064 in words is "fifty-three million, five hundred thirty-one thousand, sixty-four".