52921449 has 12 divisors (see below), whose sum is σ = 87362496. Its totient is φ = 30240792.

The previous prime is 52921439. The next prime is 52921457. The reversal of 52921449 is 94412925.

It is not a de Polignac number, because 52921449 - 2¹³ = 52913257 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52921409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 419949 + ... + 420074.

It is an arithmetic number, because the mean of its divisors is an integer number (7280208).

Almost surely, 2^52921449 is an apocalyptic number.

It is an amenable number.

52921449 is a deficient number, since it is larger than the sum of its proper divisors (34441047).

52921449 is a wasteful number, since it uses less digits than its factorization.

52921449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840036 (or 840033 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 52921449 is about 7274.7129840290. The cubic root of 52921449 is about 375.4429113395.

The spelling of 52921449 in words is "fifty-two million, nine hundred twenty-one thousand, four hundred forty-nine".