51672550 has 12 divisors (see below), whose sum is σ = 96111036. Its totient is φ = 20669000.

The previous prime is 51672529. The next prime is 51672581. The reversal of 51672550 is 5527615.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 516676 + ... + 516775.

It is an arithmetic number, because the mean of its divisors is an integer number (8009253).

Almost surely, 2^51672550 is an apocalyptic number.

51672550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51672550 is a deficient number, since it is larger than the sum of its proper divisors (44438486).

51672550 is a wasteful number, since it uses less digits than its factorization.

51672550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033463 (or 1033458 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 51672550 is about 7188.3621222084. The cubic root of 51672550 is about 372.4659969262.

The spelling of 51672550 in words is "fifty-one million, six hundred seventy-two thousand, five hundred fifty".