51452232 has 32 divisors (see below), whose sum is σ = 138526080. Its totient is φ = 15831360.

The previous prime is 51452231. The next prime is 51452267. The reversal of 51452232 is 23225415.

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

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (51452231) 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, 82144 + ... + 82767.

It is an arithmetic number, because the mean of its divisors is an integer number (4328940).

Almost surely, 2^51452232 is an apocalyptic number.

51452232 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

51452232 is an abundant number, since it is smaller than the sum of its proper divisors (87073848).

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

51452232 is a wasteful number, since it uses less digits than its factorization.

51452232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164933 (or 164929 counting only the distinct ones).

The product of its digits is 2400, while the sum is 24.

The square root of 51452232 is about 7173.0211208388. The cubic root of 51452232 is about 371.9358774897.

Adding to 51452232 its reverse (23225415), we get a palindrome (74677647).

The spelling of 51452232 in words is "fifty-one million, four hundred fifty-two thousand, two hundred thirty-two".