51153300 has 108 divisors (see below), whose sum is σ = 174947136. Its totient is φ = 12398400.

The previous prime is 51153287. The next prime is 51153337. The reversal of 51153300 is 335115.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7317 + ... + 12483.

Almost surely, 2^51153300 is an apocalyptic number.

51153300 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51153300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87473568).

51153300 is an abundant number, since it is smaller than the sum of its proper divisors (123793836).

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

51153300 is a wasteful number, since it uses less digits than its factorization.

51153300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5198 (or 5188 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 18.

The square root of 51153300 is about 7152.1535218422. The cubic root of 51153300 is about 371.2141753684.

Adding to 51153300 its reverse (335115), we get a palindrome (51488415).

It can be divided in two parts, 51 and 153300, that added together give a palindrome (153351).

The spelling of 51153300 in words is "fifty-one million, one hundred fifty-three thousand, three hundred".