53151432 has 32 divisors (see below), whose sum is σ = 137462400. Its totient is φ = 17105984.

The previous prime is 53151419. The next prime is 53151433. The reversal of 53151432 is 23415135.

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

It is not an unprimeable number, because it can be changed into a prime (53151433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37488 + ... + 38879.

It is an arithmetic number, because the mean of its divisors is an integer number (4295700).

Almost surely, 2^53151432 is an apocalyptic number.

It is an amenable number.

53151432 is an abundant number, since it is smaller than the sum of its proper divisors (84310968).

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

53151432 is a wasteful number, since it uses less digits than its factorization.

53151432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76405 (or 76401 counting only the distinct ones).

The product of its digits is 1800, while the sum is 24.

The square root of 53151432 is about 7290.5028633147. The cubic root of 53151432 is about 375.9859848405.

Adding to 53151432 its reverse (23415135), we get a palindrome (76566567).

The spelling of 53151432 in words is "fifty-three million, one hundred fifty-one thousand, four hundred thirty-two".