51675744 has 96 divisors (see below), whose sum is σ = 146482560. Its totient is φ = 15897600.

The previous prime is 51675739. The next prime is 51675749. The reversal of 51675744 is 44757615.

It is an interprime number because it is at equal distance from previous prime (51675739) and next prime (51675749).

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 (51675749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74439 + ... + 75129.

It is an arithmetic number, because the mean of its divisors is an integer number (1525860).

Almost surely, 2^51675744 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 51675744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73241280).

51675744 is an abundant number, since it is smaller than the sum of its proper divisors (94806816).

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

51675744 is a wasteful number, since it uses less digits than its factorization.

51675744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764 (or 756 counting only the distinct ones).

The product of its digits is 117600, while the sum is 39.

The square root of 51675744 is about 7188.5842834316. The cubic root of 51675744 is about 372.4736710967.

The spelling of 51675744 in words is "fifty-one million, six hundred seventy-five thousand, seven hundred forty-four".