51922100 has 36 divisors (see below), whose sum is σ = 115724364. Its totient is φ = 20206080.

The previous prime is 51922081. The next prime is 51922103. The reversal of 51922100 is 122915.

It can be written as a sum of positive squares in 6 ways, for example, as 913936 + 51008164 = 956^2 + 7142^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51922103) 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, 3317 + ... + 10716.

Almost surely, 2^51922100 is an apocalyptic number.

51922100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51922100 is an abundant number, since it is smaller than the sum of its proper divisors (63802264).

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

51922100 is a wasteful number, since it uses less digits than its factorization.

51922100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14084 (or 14077 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 51922100 is about 7205.6991333250. The cubic root of 51922100 is about 373.0646362362.

The spelling of 51922100 in words is "fifty-one million, nine hundred twenty-two thousand, one hundred".