52621744 has 40 divisors (see below), whose sum is σ = 117635328. Its totient is φ = 22336320.

The previous prime is 52621729. The next prime is 52621763. The reversal of 52621744 is 44712625.

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, 9789 + ... + 14179.

Almost surely, 2^52621744 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 52621744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58817664).

52621744 is an abundant number, since it is smaller than the sum of its proper divisors (65013584).

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

52621744 is a wasteful number, since it uses less digits than its factorization.

52621744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4513 (or 4507 counting only the distinct ones).

The product of its digits is 13440, while the sum is 31.

The square root of 52621744 is about 7254.0846424618. The cubic root of 52621744 is about 374.7328325174.

The spelling of 52621744 in words is "fifty-two million, six hundred twenty-one thousand, seven hundred forty-four".