51043125 has 40 divisors (see below), whose sum is σ = 97218880. Its totient is φ = 23328000.

The previous prime is 51043123. The next prime is 51043127. The reversal of 51043125 is 52134015.

It is an interprime number because it is at equal distance from previous prime (51043123) and next prime (51043127).

It is not a de Polignac number, because 51043125 - 2¹ = 51043123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51043123) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 11181 + ... + 15069.

It is an arithmetic number, because the mean of its divisors is an integer number (2430472).

Almost surely, 2^51043125 is an apocalyptic number.

It is an amenable number.

51043125 is a deficient number, since it is larger than the sum of its proper divisors (46175755).

51043125 is an equidigital number, since it uses as much as digits as its factorization.

51043125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3919 (or 3904 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 51043125 is about 7144.4471444612. The cubic root of 51043125 is about 370.9474742977.

The spelling of 51043125 in words is "fifty-one million, forty-three thousand, one hundred twenty-five".