51979548 has 24 divisors (see below), whose sum is σ = 122362128. Its totient is φ = 17172736.

The previous prime is 51979547. The next prime is 51979567. The reversal of 51979548 is 84597915.

It is a junction number, because it is equal to n+sod(n) for n = 51979497 and 51979506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51979547) 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 7 ways as a sum of consecutive naturals, for example, 17811 + ... + 20522.

It is an arithmetic number, because the mean of its divisors is an integer number (5098422).

Almost surely, 2^51979548 is an apocalyptic number.

It is an amenable number.

51979548 is an abundant number, since it is smaller than the sum of its proper divisors (70382580).

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

51979548 is a wasteful number, since it uses less digits than its factorization.

51979548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38453 (or 38451 counting only the distinct ones).

The product of its digits is 453600, while the sum is 48.

The square root of 51979548 is about 7209.6843204124. The cubic root of 51979548 is about 373.2021750866.

The spelling of 51979548 in words is "fifty-one million, nine hundred seventy-nine thousand, five hundred forty-eight".