50525066621 has 4 divisors (see below), whose sum is σ = 52721808672. Its totient is φ = 48328324572.

The previous prime is 50525066587. The next prime is 50525066639. The reversal of 50525066621 is 12666052505.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50525066621 - 2¹⁰ = 50525065597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50525066681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1098370991 + ... + 1098371036.

It is an arithmetic number, because the mean of its divisors is an integer number (13180452168).

Almost surely, 2^50525066621 is an apocalyptic number.

It is an amenable number.

50525066621 is a deficient number, since it is larger than the sum of its proper divisors (2196742051).

50525066621 is a wasteful number, since it uses less digits than its factorization.

50525066621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2196742050.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 50525066621 in words is "fifty billion, five hundred twenty-five million, sixty-six thousand, six hundred twenty-one".