51504262 has 8 divisors (see below), whose sum is σ = 77490792. Its totient is φ = 25674000.

The previous prime is 51504253. The next prime is 51504263. The reversal of 51504262 is 26240515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51504263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38239 + ... + 39562.

It is an arithmetic number, because the mean of its divisors is an integer number (9686349).

Almost surely, 2^51504262 is an apocalyptic number.

51504262 is a deficient number, since it is larger than the sum of its proper divisors (25986530).

51504262 is a wasteful number, since it uses less digits than its factorization.

51504262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78134.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 51504262 is about 7176.6469886710. The cubic root of 51504262 is about 372.0612060620.

Adding to 51504262 its reverse (26240515), we get a palindrome (77744777).

The spelling of 51504262 in words is "fifty-one million, five hundred four thousand, two hundred sixty-two".