51404362 has 16 divisors (see below), whose sum is σ = 82103112. Its totient is φ = 24053760.

The previous prime is 51404351. The next prime is 51404371. The reversal of 51404362 is 26340415.

It can be written as a sum of positive squares in 4 ways, for example, as 39425841 + 11978521 = 6279^2 + 3461^2 .

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 in 7 ways as a sum of consecutive naturals, for example, 1978 + ... + 10330.

Almost surely, 2^51404362 is an apocalyptic number.

51404362 is a deficient number, since it is larger than the sum of its proper divisors (30698750).

51404362 is a wasteful number, since it uses less digits than its factorization.

51404362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8553.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 51404362 is about 7169.6835355544. The cubic root of 51404362 is about 371.8204947727.

Adding to 51404362 its reverse (26340415), we get a palindrome (77744777).

The spelling of 51404362 in words is "fifty-one million, four hundred four thousand, three hundred sixty-two".