51121032 has 32 divisors (see below), whose sum is σ = 128040480. Its totient is φ = 17008640.

The previous prime is 51121009. The next prime is 51121033. The reversal of 51121032 is 23012115.

It is a super-2 number, since 2×51121032² = 5226719825490048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51121033) 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, 13723 + ... + 17045.

It is an arithmetic number, because the mean of its divisors is an integer number (4001265).

Almost surely, 2^51121032 is an apocalyptic number.

It is an amenable number.

51121032 is an abundant number, since it is smaller than the sum of its proper divisors (76919448).

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

51121032 is a wasteful number, since it uses less digits than its factorization.

51121032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3973 (or 3969 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 51121032 is about 7149.8973419204. The cubic root of 51121032 is about 371.1361037772.

Adding to 51121032 its reverse (23012115), we get a palindrome (74133147).

The spelling of 51121032 in words is "fifty-one million, one hundred twenty-one thousand, thirty-two".