51496505 has 16 divisors (see below), whose sum is σ = 63426000. Its totient is φ = 40124160.

The previous prime is 51496481. The next prime is 51496507. The reversal of 51496505 is 50569415.

It can be written as a sum of positive squares in 8 ways, for example, as 6190144 + 45306361 = 2488^2 + 6731^2 .

It is not a de Polignac number, because 51496505 - 2¹⁰ = 51495481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51496507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32471 + ... + 34019.

It is an arithmetic number, because the mean of its divisors is an integer number (3964125).

Almost surely, 2^51496505 is an apocalyptic number.

It is an amenable number.

51496505 is a deficient number, since it is larger than the sum of its proper divisors (11929495).

51496505 is a wasteful number, since it uses less digits than its factorization.

51496505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1724.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 51496505 is about 7176.1065348837. The cubic root of 51496505 is about 372.0425265484.

The spelling of 51496505 in words is "fifty-one million, four hundred ninety-six thousand, five hundred five".