51355284 has 24 divisors (see below), whose sum is σ = 120025920. Its totient is φ = 17090304.

The previous prime is 51355261. The next prime is 51355289. The reversal of 51355284 is 48255315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51355289) 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, 4897 + ... + 11255.

It is an arithmetic number, because the mean of its divisors is an integer number (5001080).

Almost surely, 2^51355284 is an apocalyptic number.

It is an amenable number.

51355284 is an abundant number, since it is smaller than the sum of its proper divisors (68670636).

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

51355284 is a wasteful number, since it uses less digits than its factorization.

51355284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7039 (or 7037 counting only the distinct ones).

The product of its digits is 24000, while the sum is 33.

The square root of 51355284 is about 7166.2601124994. The cubic root of 51355284 is about 371.7021259802.

The spelling of 51355284 in words is "fifty-one million, three hundred fifty-five thousand, two hundred eighty-four".