51051051 has 12 divisors (see below), whose sum is σ = 78078312. Its totient is φ = 32031936.

The previous prime is 51051037. The next prime is 51051067. The reversal of 51051051 is 15015015.

It is not a de Polignac number, because 51051051 - 2¹⁴ = 51034667 is a prime.

51051051 is a modest number, since divided by 51051 gives 51 as remainder.

It is not an unprimeable number, because it can be changed into a prime (51051001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 166681 + ... + 166986.

It is an arithmetic number, because the mean of its divisors is an integer number (6506526).

Almost surely, 2^51051051 is an apocalyptic number.

51051051 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

51051051 is a deficient number, since it is larger than the sum of its proper divisors (27027261).

51051051 is a wasteful number, since it uses less digits than its factorization.

51051051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333690 (or 333687 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 18.

The square root of 51051051 is about 7145.0018194539. The cubic root of 51051051 is about 370.9666736023.

Adding to 51051051 its reverse (15015015), we get a palindrome (66066066).

The spelling of 51051051 in words is "fifty-one million, fifty-one thousand, fifty-one".