52621459 has 4 divisors (see below), whose sum is σ = 57405240. Its totient is φ = 47837680.

The previous prime is 52621441. The next prime is 52621463. The reversal of 52621459 is 95412625.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-52621459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52621559) 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, 2391874 + ... + 2391895.

It is an arithmetic number, because the mean of its divisors is an integer number (14351310).

Almost surely, 2^52621459 is an apocalyptic number.

52621459 is a deficient number, since it is larger than the sum of its proper divisors (4783781).

52621459 is a wasteful number, since it uses less digits than its factorization.

52621459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4783780.

The product of its digits is 21600, while the sum is 34.

The square root of 52621459 is about 7254.0649983302. The cubic root of 52621459 is about 374.7321559970.

The spelling of 52621459 in words is "fifty-two million, six hundred twenty-one thousand, four hundred fifty-nine".