51212298 has 16 divisors (see below), whose sum is σ = 102777696. Its totient is φ = 17011920.

The previous prime is 51212263. The next prime is 51212299. The reversal of 51212298 is 89221215.

It is not an unprimeable number, because it can be changed into a prime (51212299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12808 + ... + 16323.

It is an arithmetic number, because the mean of its divisors is an integer number (6423606).

Almost surely, 2^51212298 is an apocalyptic number.

51212298 is an abundant number, since it is smaller than the sum of its proper divisors (51565398).

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

51212298 is a wasteful number, since it uses less digits than its factorization.

51212298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29429.

The product of its digits is 2880, while the sum is 30.

The square root of 51212298 is about 7156.2768252772. The cubic root of 51212298 is about 371.3568346525.

The spelling of 51212298 in words is "fifty-one million, two hundred twelve thousand, two hundred ninety-eight".