51150100 has 36 divisors (see below), whose sum is σ = 113367744. Its totient is φ = 20022880.

The previous prime is 51150089. The next prime is 51150107. The reversal of 51150100 is 105115.

51150100 = 165² + 166² + ... + 540².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51150107) 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, 742 + ... + 10141.

It is an arithmetic number, because the mean of its divisors is an integer number (3149104).

Almost surely, 2^51150100 is an apocalyptic number.

51150100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51150100 is an abundant number, since it is smaller than the sum of its proper divisors (62217644).

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

51150100 is a wasteful number, since it uses less digits than its factorization.

51150100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10944 (or 10937 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 13.

The square root of 51150100 is about 7151.9298094990. The cubic root of 51150100 is about 371.2064345180.

Adding to 51150100 its reverse (105115), we get a palindrome (51255215).

The spelling of 51150100 in words is "fifty-one million, one hundred fifty thousand, one hundred".