51212054 has 16 divisors (see below), whose sum is σ = 78811920. Its totient is φ = 24944640.

The previous prime is 51212047. The next prime is 51212069. The reversal of 51212054 is 45021215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54662 + ... + 55590.

It is an arithmetic number, because the mean of its divisors is an integer number (4925745).

Almost surely, 2^51212054 is an apocalyptic number.

51212054 is a deficient number, since it is larger than the sum of its proper divisors (27599866).

51212054 is a wasteful number, since it uses less digits than its factorization.

51212054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 51212054 is about 7156.2597772859. The cubic root of 51212054 is about 371.3562448774.

Adding to 51212054 its reverse (45021215), we get a palindrome (96233269).

The spelling of 51212054 in words is "fifty-one million, two hundred twelve thousand, fifty-four".