51441408 has 108 divisors (see below), whose sum is σ = 150663240. Its totient is φ = 16877568.

The previous prime is 51441353. The next prime is 51441413. The reversal of 51441408 is 80414415.

It is a happy number.

51441408 is a `hidden beast` number, since 514 + 4 + 140 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 191098 + ... + 191366.

It is an arithmetic number, because the mean of its divisors is an integer number (1395030).

Almost surely, 2^51441408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51441408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75331620).

51441408 is an abundant number, since it is smaller than the sum of its proper divisors (99221832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51441408 is a wasteful number, since it uses less digits than its factorization.

51441408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 357 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 51441408 is about 7172.2665873488. The cubic root of 51441408 is about 371.9097942916.

The spelling of 51441408 in words is "fifty-one million, four hundred forty-one thousand, four hundred eight".