50015440 has 40 divisors (see below), whose sum is σ = 116876448. Its totient is φ = 19904640.

The previous prime is 50015437. The next prime is 50015443. The reversal of 50015440 is 4451005.

It is an interprime number because it is at equal distance from previous prime (50015437) and next prime (50015443).

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50015443) 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, 15399 + ... + 18361.

Almost surely, 2^50015440 is an apocalyptic number.

It is an amenable number.

50015440 is an abundant number, since it is smaller than the sum of its proper divisors (66861008).

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

50015440 is a wasteful number, since it uses less digits than its factorization.

50015440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3187 (or 3181 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 50015440 is about 7072.1595004638. The cubic root of 50015440 is about 368.4410669256.

Adding to 50015440 its reverse (4451005), we get a palindrome (54466445).

The spelling of 50015440 in words is "fifty million, fifteen thousand, four hundred forty".