51263205 has 32 divisors (see below), whose sum is σ = 97818624. Its totient is φ = 22414656.

The previous prime is 51263189. The next prime is 51263231. The reversal of 51263205 is 50236215.

It is not a de Polignac number, because 51263205 - 2⁴ = 51263189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8199 + ... + 13028.

It is an arithmetic number, because the mean of its divisors is an integer number (3056832).

Almost surely, 2^51263205 is an apocalyptic number.

It is an amenable number.

51263205 is a deficient number, since it is larger than the sum of its proper divisors (46555419).

51263205 is a wasteful number, since it uses less digits than its factorization.

51263205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21265.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 51263205 is about 7159.8327494432. The cubic root of 51263205 is about 371.4798415771.

The spelling of 51263205 in words is "fifty-one million, two hundred sixty-three thousand, two hundred five".