51223598 has 4 divisors (see below), whose sum is σ = 76835400. Its totient is φ = 25611798.

The previous prime is 51223597. The next prime is 51223603. The reversal of 51223598 is 89532215.

51223598 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51223597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12805898 + ... + 12805901.

It is an arithmetic number, because the mean of its divisors is an integer number (19208850).

Almost surely, 2^51223598 is an apocalyptic number.

51223598 is a deficient number, since it is larger than the sum of its proper divisors (25611802).

51223598 is a wasteful number, since it uses less digits than its factorization.

51223598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25611801.

The product of its digits is 21600, while the sum is 35.

The square root of 51223598 is about 7157.0662984214. The cubic root of 51223598 is about 371.3841459546.

The spelling of 51223598 in words is "fifty-one million, two hundred twenty-three thousand, five hundred ninety-eight".