51925616 has 40 divisors (see below), whose sum is σ = 107024400. Its totient is φ = 24321024.

The previous prime is 51925609. The next prime is 51925661. The reversal of 51925616 is 61652915.

It is a congruent number.

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, 94655 + ... + 95201.

It is an arithmetic number, because the mean of its divisors is an integer number (2675610).

Almost surely, 2^51925616 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 51925616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53512200).

51925616 is an abundant number, since it is smaller than the sum of its proper divisors (55098784).

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

51925616 is a wasteful number, since it uses less digits than its factorization.

51925616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921 (or 915 counting only the distinct ones).

The product of its digits is 16200, while the sum is 35.

The square root of 51925616 is about 7205.9431027451. The cubic root of 51925616 is about 373.0730569643.

The spelling of 51925616 in words is "fifty-one million, nine hundred twenty-five thousand, six hundred sixteen".