51353544 has 32 divisors (see below), whose sum is σ = 140055840. Its totient is φ = 15561600.

The previous prime is 51353543. The next prime is 51353569. The reversal of 51353544 is 44535315.

It is not an unprimeable number, because it can be changed into a prime (51353543) 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, 96997 + ... + 97524.

It is an arithmetic number, because the mean of its divisors is an integer number (4376745).

Almost surely, 2^51353544 is an apocalyptic number.

It is an amenable number.

51353544 is an abundant number, since it is smaller than the sum of its proper divisors (88702296).

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

51353544 is a wasteful number, since it uses less digits than its factorization.

51353544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194541 (or 194537 counting only the distinct ones).

The product of its digits is 18000, while the sum is 30.

The square root of 51353544 is about 7166.1387092353. The cubic root of 51353544 is about 371.6979279766.

Adding to 51353544 its reverse (44535315), we get a palindrome (95888859).

The spelling of 51353544 in words is "fifty-one million, three hundred fifty-three thousand, five hundred forty-four".