51901344 has 192 divisors, whose sum is σ = 170311680. Its totient is φ = 15240960.

The previous prime is 51901309. The next prime is 51901361. The reversal of 51901344 is 44310915.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 408609 + ... + 408735.

It is an arithmetic number, because the mean of its divisors is an integer number (887040).

Almost surely, 2^51901344 is an apocalyptic number.

51901344 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51901344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85155840).

51901344 is an abundant number, since it is smaller than the sum of its proper divisors (118410336).

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

51901344 is a wasteful number, since it uses less digits than its factorization.

51901344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 51901344 is about 7204.2587404951. The cubic root of 51901344 is about 373.0149184113.

The spelling of 51901344 in words is "fifty-one million, nine hundred one thousand, three hundred forty-four".