51145038 has 48 divisors (see below), whose sum is σ = 131021280. Its totient is φ = 14107968.

The previous prime is 51145033. The next prime is 51145049. The reversal of 51145038 is 83054115.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51145033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3345 + ... + 10652.

It is an arithmetic number, because the mean of its divisors is an integer number (2729610).

Almost surely, 2^51145038 is an apocalyptic number.

51145038 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

51145038 is an abundant number, since it is smaller than the sum of its proper divisors (79876242).

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

51145038 is a wasteful number, since it uses less digits than its factorization.

51145038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14041 (or 14038 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 51145038 is about 7151.5759102452. The cubic root of 51145038 is about 371.1941888009.

The spelling of 51145038 in words is "fifty-one million, one hundred forty-five thousand, thirty-eight".