52523040 has 48 divisors (see below), whose sum is σ = 165449088. Its totient is φ = 14006016.

The previous prime is 52523027. The next prime is 52523041. The reversal of 52523040 is 4032525.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 52522998 and 52523016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52523041) 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, 54232 + ... + 55191.

It is an arithmetic number, because the mean of its divisors is an integer number (3446856).

Almost surely, 2^52523040 is an apocalyptic number.

It is an amenable number.

52523040 is an abundant number, since it is smaller than the sum of its proper divisors (112926048).

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

52523040 is a wasteful number, since it uses less digits than its factorization.

52523040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109441 (or 109433 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 52523040 is about 7247.2781097458. The cubic root of 52523040 is about 374.4983871023.

Adding to 52523040 its reverse (4032525), we get a palindrome (56555565).

The spelling of 52523040 in words is "fifty-two million, five hundred twenty-three thousand, forty".