51266100 has 36 divisors (see below), whose sum is σ = 148330784. Its totient is φ = 13670880.

The previous prime is 51266099. The next prime is 51266107. The reversal of 51266100 is 166215.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51266107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85144 + ... + 85743.

Almost surely, 2^51266100 is an apocalyptic number.

51266100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51266100 is an abundant number, since it is smaller than the sum of its proper divisors (97064684).

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

51266100 is a wasteful number, since it uses less digits than its factorization.

51266100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170904 (or 170897 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 51266100 is about 7160.0349161160. The cubic root of 51266100 is about 371.4868343373.

The spelling of 51266100 in words is "fifty-one million, two hundred sixty-six thousand, one hundred".