51523344 has 40 divisors (see below), whose sum is σ = 147892320. Its totient is φ = 17174304.

The previous prime is 51523337. The next prime is 51523349. The reversal of 51523344 is 44332515.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (51523349) 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, 59202 + ... + 60065.

It is an arithmetic number, because the mean of its divisors is an integer number (3697308).

Almost surely, 2^51523344 is an apocalyptic number.

51523344 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

51523344 is an abundant number, since it is smaller than the sum of its proper divisors (96368976).

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

51523344 is a wasteful number, since it uses less digits than its factorization.

51523344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119284 (or 119272 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 51523344 is about 7177.9763164836. The cubic root of 51523344 is about 372.1071491551.

Adding to 51523344 its reverse (44332515), we get a palindrome (95855859).

The spelling of 51523344 in words is "fifty-one million, five hundred twenty-three thousand, three hundred forty-four".