50531040 has 240 divisors, whose sum is σ = 204174432. Its totient is φ = 11529216.

The previous prime is 50531017. The next prime is 50531059. The reversal of 50531040 is 4013505.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 90442 + ... + 90998.

Almost surely, 2^50531040 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 50531040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102087216).

50531040 is an abundant number, since it is smaller than the sum of its proper divisors (153643392).

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

50531040 is a wasteful number, since it uses less digits than its factorization.

50531040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591 (or 574 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 50531040 is about 7108.5188330622. The cubic root of 50531040 is about 369.7028049321.

Adding to 50531040 its reverse (4013505), we get a palindrome (54544545).

The spelling of 50531040 in words is "fifty million, five hundred thirty-one thousand, forty".