50455521 has 8 divisors (see below), whose sum is σ = 74748960. Its totient is φ = 33636996.

The previous prime is 50455501. The next prime is 50455553. The reversal of 50455521 is 12555405.

It is not a de Polignac number, because 50455521 - 2²² = 46261217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1868723 = 50455521 / (5 + 0 + 4 + 5 + 5 + 5 + 2 + 1).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50455501) 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, 934335 + ... + 934388.

It is an arithmetic number, because the mean of its divisors is an integer number (9343620).

Almost surely, 2^50455521 is an apocalyptic number.

It is an amenable number.

50455521 is a deficient number, since it is larger than the sum of its proper divisors (24293439).

50455521 is a wasteful number, since it uses less digits than its factorization.

50455521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868732 (or 1868726 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 50455521 is about 7103.2049808520. The cubic root of 50455521 is about 369.5185386121.

The spelling of 50455521 in words is "fifty million, four hundred fifty-five thousand, five hundred twenty-one".