51610144 has 48 divisors (see below), whose sum is σ = 105204960. Its totient is φ = 24906240.

The previous prime is 51610123. The next prime is 51610171. The reversal of 51610144 is 44101615.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182227 + ... + 182509.

It is an arithmetic number, because the mean of its divisors is an integer number (2191770).

Almost surely, 2^51610144 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 51610144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52602480).

51610144 is an abundant number, since it is smaller than the sum of its proper divisors (53594816).

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

51610144 is a wasteful number, since it uses less digits than its factorization.

51610144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473 (or 465 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 51610144 is about 7184.0200445155. The cubic root of 51610144 is about 372.3159915768.

Adding to 51610144 its reverse (44101615), we get a palindrome (95711759).

The spelling of 51610144 in words is "fifty-one million, six hundred ten thousand, one hundred forty-four".