51222054 has 32 divisors (see below), whose sum is σ = 116817120. Its totient is φ = 14833152.

The previous prime is 51222047. The next prime is 51222107. The reversal of 51222054 is 45022215.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 51222054.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17989 + ... + 20640.

It is an arithmetic number, because the mean of its divisors is an integer number (3650535).

Almost surely, 2^51222054 is an apocalyptic number.

51222054 is an abundant number, since it is smaller than the sum of its proper divisors (65595066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51222054 is a wasteful number, since it uses less digits than its factorization.

51222054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38664.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 51222054 is about 7156.9584321833. The cubic root of 51222054 is about 371.3804144525.

Adding to 51222054 its reverse (45022215), we get a palindrome (96244269).

The spelling of 51222054 in words is "fifty-one million, two hundred twenty-two thousand, fifty-four".