51410040 has 256 divisors, whose sum is σ = 186624000. Its totient is φ = 11182080.

The previous prime is 51410017. The next prime is 51410077. The reversal of 51410040 is 4001415.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 650721 + ... + 650799.

It is an arithmetic number, because the mean of its divisors is an integer number (729000).

Almost surely, 2^51410040 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 51410040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93312000).

51410040 is an abundant number, since it is smaller than the sum of its proper divisors (135213960).

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

51410040 is a wasteful number, since it uses less digits than its factorization.

51410040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 51410040 is about 7170.0794974672. The cubic root of 51410040 is about 371.8341843959.

Adding to 51410040 its reverse (4001415), we get a palindrome (55411455).

The spelling of 51410040 in words is "fifty-one million, four hundred ten thousand, forty".