51442264 has 8 divisors (see below), whose sum is σ = 96454260. Its totient is φ = 25721128.

The previous prime is 51442243. The next prime is 51442271. The reversal of 51442264 is 46224415.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3215134 + ... + 3215149.

Almost surely, 2^51442264 is an apocalyptic number.

It is an amenable number.

51442264 is a deficient number, since it is larger than the sum of its proper divisors (45011996).

51442264 is a wasteful number, since it uses less digits than its factorization.

51442264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6430289 (or 6430285 counting only the distinct ones).

The product of its digits is 7680, while the sum is 28.

The square root of 51442264 is about 7172.3262614022. The cubic root of 51442264 is about 371.9118571759.

Adding to 51442264 its reverse (46224415), we get a palindrome (97666679).

It can be divided in two parts, 514 and 42264, that added together give a triangular number (42778 = T₂₉₂).

The spelling of 51442264 in words is "fifty-one million, four hundred forty-two thousand, two hundred sixty-four".