51613056 has 96 divisors (see below), whose sum is σ = 162063720. Its totient is φ = 15636480.

The previous prime is 51613049. The next prime is 51613057. The reversal of 51613056 is 65031615.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51613057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10636 + ... + 14708.

Almost surely, 2^51613056 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 51613056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81031860).

51613056 is an abundant number, since it is smaller than the sum of its proper divisors (110450664).

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

51613056 is a wasteful number, since it uses less digits than its factorization.

51613056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4104 (or 4089 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 51613056 is about 7184.2227136970. Note that the first 3 decimals coincide. The cubic root of 51613056 is about 372.3229938422.

The spelling of 51613056 in words is "fifty-one million, six hundred thirteen thousand, fifty-six".