51606495 has 48 divisors (see below), whose sum is σ = 93012192. Its totient is φ = 26449920.

The previous prime is 51606491. The next prime is 51606521. The reversal of 51606495 is 59460615.

51606495 is a `hidden beast` number, since 5 + 1 + 6 + 0 + 649 + 5 = 666.

It is not a de Polignac number, because 51606495 - 2² = 51606491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51606491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 152967 + ... + 153303.

It is an arithmetic number, because the mean of its divisors is an integer number (1937754).

Almost surely, 2^51606495 is an apocalyptic number.

51606495 is a deficient number, since it is larger than the sum of its proper divisors (41405697).

51606495 is a wasteful number, since it uses less digits than its factorization.

51606495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472 (or 469 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 51606495 is about 7183.7660735856. The cubic root of 51606495 is about 372.3072167316.

The spelling of 51606495 in words is "fifty-one million, six hundred six thousand, four hundred ninety-five".