51019332 has 96 divisors (see below), whose sum is σ = 154291200. Its totient is φ = 12742272.

The previous prime is 51019327. The next prime is 51019333. The reversal of 51019332 is 23391015.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (51019333) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19519 + ... + 21977.

It is an arithmetic number, because the mean of its divisors is an integer number (1607200).

Almost surely, 2^51019332 is an apocalyptic number.

51019332 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51019332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77145600).

51019332 is an abundant number, since it is smaller than the sum of its proper divisors (103271868).

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

51019332 is a wasteful number, since it uses less digits than its factorization.

51019332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2505 (or 2503 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 51019332 is about 7142.7818110313. The cubic root of 51019332 is about 370.8898281082.

The spelling of 51019332 in words is "fifty-one million, nineteen thousand, three hundred thirty-two".