51302100 has 36 divisors (see below), whose sum is σ = 148434944. Its totient is φ = 13680480.

The previous prime is 51302087. The next prime is 51302123. The reversal of 51302100 is 120315.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85204 + ... + 85803.

Almost surely, 2^51302100 is an apocalyptic number.

51302100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51302100 is an abundant number, since it is smaller than the sum of its proper divisors (97132844).

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

51302100 is a wasteful number, since it uses less digits than its factorization.

51302100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171024 (or 171017 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 51302100 is about 7162.5484291556. The cubic root of 51302100 is about 371.5737689581.

Adding to 51302100 its reverse (120315), we get a palindrome (51422415).

The spelling of 51302100 in words is "fifty-one million, three hundred two thousand, one hundred".