52385040 has 120 divisors (see below), whose sum is σ = 181678848. Its totient is φ = 13512960.

The previous prime is 52385023. The next prime is 52385057. The reversal of 52385040 is 4058325.

It is an interprime number because it is at equal distance from previous prime (52385023) and next prime (52385057).

It is a tau number, because it is divible by the number of its divisors (120).

It is a junction number, because it is equal to n+sod(n) for n = 52384995 and 52385013.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21147 + ... + 23493.

Almost surely, 2^52385040 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 52385040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90839424).

52385040 is an abundant number, since it is smaller than the sum of its proper divisors (129293808).

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

52385040 is a wasteful number, since it uses less digits than its factorization.

52385040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2397 (or 2388 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 52385040 is about 7237.7510319159. The cubic root of 52385040 is about 374.1701114481.

The spelling of 52385040 in words is "fifty-two million, three hundred eighty-five thousand, forty".