51503467 has 4 divisors (see below), whose sum is σ = 51641920. Its totient is φ = 51365016.

The previous prime is 51503461. The next prime is 51503477. The reversal of 51503467 is 76430515.

51503467 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51503467 - 2¹⁹ = 50979179 is a prime.

It is a super-2 number, since 2×51503467² = 5305214226040178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51503461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68667 + ... + 69412.

It is an arithmetic number, because the mean of its divisors is an integer number (12910480).

Almost surely, 2^51503467 is an apocalyptic number.

51503467 is a deficient number, since it is larger than the sum of its proper divisors (138453).

51503467 is a wasteful number, since it uses less digits than its factorization.

51503467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138452.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 51503467 is about 7176.5916004744. The cubic root of 51503467 is about 372.0592917208.

It can be divided in two parts, 515034 and 67, that multiplied together give a triangular number (34507278 = T₈₃₀₇).

The spelling of 51503467 in words is "fifty-one million, five hundred three thousand, four hundred sixty-seven".