51551254 has 8 divisors (see below), whose sum is σ = 78416208. Its totient is φ = 25412520.

The previous prime is 51551243. The next prime is 51551261. The reversal of 51551254 is 45215515.

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

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 3 ways as a sum of consecutive naturals, for example, 181377 + ... + 181660.

It is an arithmetic number, because the mean of its divisors is an integer number (9802026).

Almost surely, 2^51551254 is an apocalyptic number.

51551254 is a deficient number, since it is larger than the sum of its proper divisors (26864954).

51551254 is a wasteful number, since it uses less digits than its factorization.

51551254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363110.

The product of its digits is 5000, while the sum is 28.

The square root of 51551254 is about 7179.9201945426. The cubic root of 51551254 is about 372.1743267037.

Adding to 51551254 its reverse (45215515), we get a palindrome (96766769).

The spelling of 51551254 in words is "fifty-one million, five hundred fifty-one thousand, two hundred fifty-four".