52687944 has 96 divisors (see below), whose sum is σ = 147888000. Its totient is φ = 16937856.

The previous prime is 52687939. The next prime is 52687949. The reversal of 52687944 is 44978625.

It is a happy number.

52687944 is a `hidden beast` number, since 526 + 87 + 9 + 44 = 666.

It is an interprime number because it is at equal distance from previous prime (52687939) and next prime (52687949).

It is a self number, because there is not a number n which added to its sum of digits gives 52687944.

It is not an unprimeable number, because it can be changed into a prime (52687949) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 335514 + ... + 335670.

It is an arithmetic number, because the mean of its divisors is an integer number (1540500).

Almost surely, 2^52687944 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 52687944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73944000).

52687944 is an abundant number, since it is smaller than the sum of its proper divisors (95200056).

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

52687944 is a wasteful number, since it uses less digits than its factorization.

52687944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307 (or 300 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 52687944 is about 7258.6461547592. The cubic root of 52687944 is about 374.8899090164.

The spelling of 52687944 in words is "fifty-two million, six hundred eighty-seven thousand, nine hundred forty-four".