51872446 has 24 divisors (see below), whose sum is σ = 82018440. Its totient is φ = 24579936.

The previous prime is 51872411. The next prime is 51872449. The reversal of 51872446 is 64427815.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51872449) 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, 475840 + ... + 475948.

It is an arithmetic number, because the mean of its divisors is an integer number (3417435).

Almost surely, 2^51872446 is an apocalyptic number.

51872446 is a deficient number, since it is larger than the sum of its proper divisors (30145994).

51872446 is a wasteful number, since it uses less digits than its factorization.

51872446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 207 counting only the distinct ones).

The product of its digits is 53760, while the sum is 37.

The square root of 51872446 is about 7202.2528419933. The cubic root of 51872446 is about 372.9456755908.

The spelling of 51872446 in words is "fifty-one million, eight hundred seventy-two thousand, four hundred forty-six".