50505540 has 48 divisors (see below), whose sum is σ = 141852480. Its totient is φ = 13426560.

The previous prime is 50505529. The next prime is 50505547. The reversal of 50505540 is 4550505.

It is a self number, because there is not a number n which added to its sum of digits gives 50505540.

It is not an unprimeable number, because it can be changed into a prime (50505547) 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, 21630 + ... + 23850.

It is an arithmetic number, because the mean of its divisors is an integer number (2955260).

Almost surely, 2^50505540 is an apocalyptic number.

It is an amenable number.

50505540 is an abundant number, since it is smaller than the sum of its proper divisors (91346940).

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

50505540 is a wasteful number, since it uses less digits than its factorization.

50505540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2612 (or 2610 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 24.

The square root of 50505540 is about 7106.7249841260. The cubic root of 50505540 is about 369.6406054880.

The spelling of 50505540 in words is "fifty million, five hundred five thousand, five hundred forty".