50531520 has 112 divisors (see below), whose sum is σ = 172821600. Its totient is φ = 12435456.

The previous prime is 50531513. The next prime is 50531527. The reversal of 50531520 is 2513505.

It is an interprime number because it is at equal distance from previous prime (50531513) and next prime (50531527).

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (50531527) 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, 10456 + ... + 14504.

It is an arithmetic number, because the mean of its divisors is an integer number (1543050).

Almost surely, 2^50531520 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 50531520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86410800).

50531520 is an abundant number, since it is smaller than the sum of its proper divisors (122290080).

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

50531520 is a wasteful number, since it uses less digits than its factorization.

50531520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4082 (or 4072 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 50531520 is about 7108.5525952897. The cubic root of 50531520 is about 369.7039755445.

The spelling of 50531520 in words is "fifty million, five hundred thirty-one thousand, five hundred twenty".