50253921 has 27 divisors (see below), whose sum is σ = 77668851. Its totient is φ = 31305024.

The previous prime is 50253913. The next prime is 50253923. The reversal of 50253921 is 12935205.

The square root of 50253921 is 7089.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 39125025 + 11128896 = 6255^2 + 3336^2 .

It is not a de Polignac number, because 50253921 - 2³ = 50253913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50253923) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 361470 + ... + 361608.

Almost surely, 2^50253921 is an apocalyptic number.

50253921 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

50253921 is the 7089-th square number.

50253921 is the 3545-th centered octagonal number.

It is an amenable number.

50253921 is a deficient number, since it is larger than the sum of its proper divisors (27414930).

50253921 is a wasteful number, since it uses less digits than its factorization.

50253921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The cubic root of 50253921 is about 369.0257324466.

The spelling of 50253921 in words is "fifty million, two hundred fifty-three thousand, nine hundred twenty-one".