52007940 has 192 divisors, whose sum is σ = 176198400. Its totient is φ = 12690432.

The previous prime is 52007939. The next prime is 52007957. The reversal of 52007940 is 4970025.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 379552 + ... + 379688.

It is an arithmetic number, because the mean of its divisors is an integer number (917700).

Almost surely, 2^52007940 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 52007940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88099200).

52007940 is an abundant number, since it is smaller than the sum of its proper divisors (124190460).

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

52007940 is a wasteful number, since it uses less digits than its factorization.

52007940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 52007940 is about 7211.6530698585. The cubic root of 52007940 is about 373.2701122396.

Adding to 52007940 its reverse (4970025), we get a palindrome (56977965).

The spelling of 52007940 in words is "fifty-two million, seven thousand, nine hundred forty".