51220932 has 48 divisors (see below), whose sum is σ = 144627840. Its totient is φ = 13773312.

The previous prime is 51220927. The next prime is 51220937. The reversal of 51220932 is 23902215.

It is an interprime number because it is at equal distance from previous prime (51220927) and next prime (51220937).

It is not an unprimeable number, because it can be changed into a prime (51220937) 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 15 ways as a sum of consecutive naturals, for example, 16507 + ... + 19362.

It is an arithmetic number, because the mean of its divisors is an integer number (3013080).

Almost surely, 2^51220932 is an apocalyptic number.

It is an amenable number.

51220932 is an abundant number, since it is smaller than the sum of its proper divisors (93406908).

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

51220932 is a wasteful number, since it uses less digits than its factorization.

51220932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35900 (or 35898 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 51220932 is about 7156.8800465007. The cubic root of 51220932 is about 371.3777027829.

The spelling of 51220932 in words is "fifty-one million, two hundred twenty thousand, nine hundred thirty-two".