51213058 has 16 divisors (see below), whose sum is σ = 83966400. Its totient is φ = 23283216.

The previous prime is 51213049. The next prime is 51213067. The reversal of 51213058 is 85031215.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (51213049) and next prime (51213067).

It is a super-3 number, since 3×51213058³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 7 ways as a sum of consecutive naturals, for example, 12958 + ... + 16441.

It is an arithmetic number, because the mean of its divisors is an integer number (5247900).

Almost surely, 2^51213058 is an apocalyptic number.

51213058 is a deficient number, since it is larger than the sum of its proper divisors (32753342).

51213058 is a wasteful number, since it uses less digits than its factorization.

51213058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29481.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 51213058 is about 7156.3299253179. The cubic root of 51213058 is about 371.3586716448.

The spelling of 51213058 in words is "fifty-one million, two hundred thirteen thousand, fifty-eight".