52575040 has 112 divisors (see below), whose sum is σ = 146304000. Its totient is φ = 17988096.

The previous prime is 52575023. The next prime is 52575043. The reversal of 52575040 is 4057525.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52575043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109521 + ... + 109999.

Almost surely, 2^52575040 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 52575040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73152000).

52575040 is an abundant number, since it is smaller than the sum of its proper divisors (93728960).

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

52575040 is an equidigital number, since it uses as much as digits as its factorization.

52575040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517 (or 493 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 52575040 is about 7250.8647760112. The cubic root of 52575040 is about 374.6219360121.

The spelling of 52575040 in words is "fifty-two million, five hundred seventy-five thousand, forty".