51441075 has 120 divisors (see below), whose sum is σ = 115230720. Its totient is φ = 22161600.

The previous prime is 51441073. The next prime is 51441079. The reversal of 51441075 is 57014415.

It is a happy number.

It is not a de Polignac number, because 51441075 - 2¹ = 51441073 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (51441073) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 269230 + ... + 269420.

It is an arithmetic number, because the mean of its divisors is an integer number (960256).

Almost surely, 2^51441075 is an apocalyptic number.

51441075 is an abundant number, since it is smaller than the sum of its proper divisors (63789645).

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

51441075 is a wasteful number, since it uses less digits than its factorization.

51441075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 51441075 is about 7172.2433728925. The cubic root of 51441075 is about 371.9089917849.

The spelling of 51441075 in words is "fifty-one million, four hundred forty-one thousand, seventy-five".