52464540 has 24 divisors (see below), whose sum is σ = 146900880. Its totient is φ = 13990528.

The previous prime is 52464523. The next prime is 52464547. The reversal of 52464540 is 4546425.

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

It is a junction number, because it is equal to n+sod(n) for n = 52464498 and 52464507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52464547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437145 + ... + 437264.

It is an arithmetic number, because the mean of its divisors is an integer number (6120870).

Almost surely, 2^52464540 is an apocalyptic number.

It is an amenable number.

52464540 is an abundant number, since it is smaller than the sum of its proper divisors (94436340).

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

52464540 is a wasteful number, since it uses less digits than its factorization.

52464540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874421 (or 874419 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 52464540 is about 7243.2409872929. The cubic root of 52464540 is about 374.3592970672.

The spelling of 52464540 in words is "fifty-two million, four hundred sixty-four thousand, five hundred forty".