51064253 has 4 divisors (see below), whose sum is σ = 51111900. Its totient is φ = 51016608.

The previous prime is 51064249. The next prime is 51064297. The reversal of 51064253 is 35246015.

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

It can be written as a sum of positive squares in 2 ways, for example, as 35366809 + 15697444 = 5947^2 + 3962^2 .

It is a cyclic number.

It is not a de Polignac number, because 51064253 - 2² = 51064249 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51064213) 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, 22178 + ... + 24371.

It is an arithmetic number, because the mean of its divisors is an integer number (12777975).

Almost surely, 2^51064253 is an apocalyptic number.

It is an amenable number.

51064253 is a deficient number, since it is larger than the sum of its proper divisors (47647).

51064253 is a wasteful number, since it uses less digits than its factorization.

51064253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47646.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 51064253 is about 7145.9256223389. The cubic root of 51064253 is about 370.9986486535.

The spelling of 51064253 in words is "fifty-one million, sixty-four thousand, two hundred fifty-three".