51045299 has 4 divisors (see below), whose sum is σ = 51550800. Its totient is φ = 50539800.

The previous prime is 51045209. The next prime is 51045301. The reversal of 51045299 is 99254015.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51045299 - 2²⁴ = 34268083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51045209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252599 + ... + 252800.

It is an arithmetic number, because the mean of its divisors is an integer number (12887700).

Almost surely, 2^51045299 is an apocalyptic number.

51045299 is a deficient number, since it is larger than the sum of its proper divisors (505501).

51045299 is a wasteful number, since it uses less digits than its factorization.

51045299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505500.

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 51045299 is about 7144.5992889735. The cubic root of 51045299 is about 370.9527406182.

The spelling of 51045299 in words is "fifty-one million, forty-five thousand, two hundred ninety-nine".