51123348 has 18 divisors (see below), whose sum is σ = 129228554. Its totient is φ = 17041104.

The previous prime is 51123341. The next prime is 51123377. The reversal of 51123348 is 84332115.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 26501904 + 24621444 = 5148^2 + 4962^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×51123348² = 5227193421458208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51123341) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 710011 + ... + 710082.

Almost surely, 2^51123348 is an apocalyptic number.

It is an amenable number.

51123348 is an abundant number, since it is smaller than the sum of its proper divisors (78105206).

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

51123348 is a wasteful number, since it uses less digits than its factorization.

51123348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420103 (or 1420098 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 51123348 is about 7150.0593004534. The cubic root of 51123348 is about 371.1417083735.

The spelling of 51123348 in words is "fifty-one million, one hundred twenty-three thousand, three hundred forty-eight".