51490054 has 32 divisors (see below), whose sum is σ = 100486656. Its totient is φ = 19187520.

The previous prime is 51490037. The next prime is 51490063. The reversal of 51490054 is 45009415.

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 in 15 ways as a sum of consecutive naturals, for example, 3727 + ... + 10810.

It is an arithmetic number, because the mean of its divisors is an integer number (3140208).

Almost surely, 2^51490054 is an apocalyptic number.

51490054 is a deficient number, since it is larger than the sum of its proper divisors (48996602).

51490054 is a wasteful number, since it uses less digits than its factorization.

51490054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14580.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 51490054 is about 7175.6570430867. The cubic root of 51490054 is about 372.0269905649.

Adding to 51490054 its reverse (45009415), we get a palindrome (96499469).

The spelling of 51490054 in words is "fifty-one million, four hundred ninety thousand, fifty-four".