51145386 has 32 divisors (see below), whose sum is σ = 106436160. Its totient is φ = 16364544.

The previous prime is 51145379. The next prime is 51145403. The reversal of 51145386 is 68354115.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32821 + ... + 34343.

It is an arithmetic number, because the mean of its divisors is an integer number (3326130).

Almost surely, 2^51145386 is an apocalyptic number.

51145386 is an abundant number, since it is smaller than the sum of its proper divisors (55290774).

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

51145386 is a wasteful number, since it uses less digits than its factorization.

51145386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750.

The product of its digits is 14400, while the sum is 33.

The square root of 51145386 is about 7151.6002405056. The cubic root of 51145386 is about 371.1950306896.

The spelling of 51145386 in words is "fifty-one million, one hundred forty-five thousand, three hundred eighty-six".