51253005 has 32 divisors (see below), whose sum is σ = 86313600. Its totient is φ = 25932032.

The previous prime is 51253001. The next prime is 51253043. The reversal of 51253005 is 50035215.

It is not a de Polignac number, because 51253005 - 2² = 51253001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51253001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24667 + ... + 26663.

It is an arithmetic number, because the mean of its divisors is an integer number (2697300).

Almost surely, 2^51253005 is an apocalyptic number.

It is an amenable number.

51253005 is a deficient number, since it is larger than the sum of its proper divisors (35060595).

51253005 is a wasteful number, since it uses less digits than its factorization.

51253005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2093.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 51253005 is about 7159.1204068656. The cubic root of 51253005 is about 371.4552017748.

The spelling of 51253005 in words is "fifty-one million, two hundred fifty-three thousand, five".