50903640 has 96 divisors (see below), whose sum is σ = 171596880. Its totient is φ = 13571712.

The previous prime is 50903621. The next prime is 50903689. The reversal of 50903640 is 4630905.

It is a happy number.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 7102 + ... + 12338.

Almost surely, 2^50903640 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 50903640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85798440).

50903640 is an abundant number, since it is smaller than the sum of its proper divisors (120693240).

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

50903640 is a wasteful number, since it uses less digits than its factorization.

50903640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5263 (or 5247 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 50903640 is about 7134.6786893314. The cubic root of 50903640 is about 370.6092713149.

The spelling of 50903640 in words is "fifty million, nine hundred three thousand, six hundred forty".