51145355 has 8 divisors (see below), whose sum is σ = 61419552. Its totient is φ = 40886208.

The previous prime is 51145349. The next prime is 51145379. The reversal of 51145355 is 55354115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51145355 - 2¹⁴ = 51128971 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6047 + ... + 11783.

It is an arithmetic number, because the mean of its divisors is an integer number (7677444).

Almost surely, 2^51145355 is an apocalyptic number.

51145355 is a deficient number, since it is larger than the sum of its proper divisors (10274197).

51145355 is a wasteful number, since it uses less digits than its factorization.

51145355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7525.

The product of its digits is 7500, while the sum is 29.

The square root of 51145355 is about 7151.5980731582. The cubic root of 51145355 is about 371.1949556939.

The spelling of 51145355 in words is "fifty-one million, one hundred forty-five thousand, three hundred fifty-five".