52640580 has 24 divisors (see below), whose sum is σ = 147393792. Its totient is φ = 14037472.

The previous prime is 52640543. The next prime is 52640587. The reversal of 52640580 is 8504625.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (52640587) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438612 + ... + 438731.

It is an arithmetic number, because the mean of its divisors is an integer number (6141408).

Almost surely, 2^52640580 is an apocalyptic number.

It is an amenable number.

52640580 is an abundant number, since it is smaller than the sum of its proper divisors (94753212).

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

52640580 is a wasteful number, since it uses less digits than its factorization.

52640580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877355 (or 877353 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 52640580 is about 7255.3828293206. The cubic root of 52640580 is about 374.7775391670. Note that the first 3 decimals are identical.

The spelling of 52640580 in words is "fifty-two million, six hundred forty thousand, five hundred eighty".