51542344 has 16 divisors (see below), whose sum is σ = 110448000. Its totient is φ = 22089552.

The previous prime is 51542321. The next prime is 51542347. The reversal of 51542344 is 44324515.

It is a super-2 number, since 2×51542344² = 5313226450028672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (51542347) 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 3 ways as a sum of consecutive naturals, for example, 460144 + ... + 460255.

It is an arithmetic number, because the mean of its divisors is an integer number (6903000).

Almost surely, 2^51542344 is an apocalyptic number.

It is an amenable number.

51542344 is an abundant number, since it is smaller than the sum of its proper divisors (58905656).

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

51542344 is a wasteful number, since it uses less digits than its factorization.

51542344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920412 (or 920408 counting only the distinct ones).

The product of its digits is 9600, while the sum is 28.

The square root of 51542344 is about 7179.2996872954. The cubic root of 51542344 is about 372.1528835504.

Adding to 51542344 its reverse (44324515), we get a palindrome (95866859).

The spelling of 51542344 in words is "fifty-one million, five hundred forty-two thousand, three hundred forty-four".