53251512 has 32 divisors (see below), whose sum is σ = 135388800. Its totient is φ = 17449184.

The previous prime is 53251507. The next prime is 53251519. The reversal of 53251512 is 21515235.

It is a happy number.

53251512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×53251512² = 5671447060572288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53251519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17388 + ... + 20219.

It is an arithmetic number, because the mean of its divisors is an integer number (4230900).

Almost surely, 2^53251512 is an apocalyptic number.

It is an amenable number.

53251512 is an abundant number, since it is smaller than the sum of its proper divisors (82137288).

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

53251512 is a wasteful number, since it uses less digits than its factorization.

53251512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37675 (or 37671 counting only the distinct ones).

The product of its digits is 1500, while the sum is 24.

The square root of 53251512 is about 7297.3633594607. The cubic root of 53251512 is about 376.2218209747.

Adding to 53251512 its reverse (21515235), we get a palindrome (74766747).

The spelling of 53251512 in words is "fifty-three million, two hundred fifty-one thousand, five hundred twelve".