51544704 has 64 divisors (see below), whose sum is σ = 137700000. Its totient is φ = 17083392.

The previous prime is 51544699. The next prime is 51544709. The reversal of 51544704 is 40744515.

It is an interprime number because it is at equal distance from previous prime (51544699) and next prime (51544709).

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (51544709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103047 + ... + 103545.

Almost surely, 2^51544704 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 51544704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68850000).

51544704 is an abundant number, since it is smaller than the sum of its proper divisors (86155296).

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

51544704 is a wasteful number, since it uses less digits than its factorization.

51544704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785 (or 773 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 30.

The square root of 51544704 is about 7179.4640468492. The cubic root of 51544704 is about 372.1585634590.

The spelling of 51544704 in words is "fifty-one million, five hundred forty-four thousand, seven hundred four".