51126432 has 48 divisors (see below), whose sum is σ = 153381312. Its totient is φ = 14607360.

The previous prime is 51126431. The next prime is 51126433. The reversal of 51126432 is 23462115.

It is an interprime number because it is at equal distance from previous prime (51126431) and next prime (51126433).

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×51126432² = 5227824098101248, which contains 22 as substring.

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 (51126431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37369 + ... + 38712.

It is an arithmetic number, because the mean of its divisors is an integer number (3195444).

Almost surely, 2^51126432 is an apocalyptic number.

It is an amenable number.

51126432 is an abundant number, since it is smaller than the sum of its proper divisors (102254880).

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

51126432 is a wasteful number, since it uses less digits than its factorization.

51126432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76101 (or 76093 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 51126432 is about 7150.2749597481. The cubic root of 51126432 is about 371.1491712260.

Adding to 51126432 its reverse (23462115), we get a palindrome (74588547).

The spelling of 51126432 in words is "fifty-one million, one hundred twenty-six thousand, four hundred thirty-two".