52426009 has 4 divisors (see below), whose sum is σ = 53541504. Its totient is φ = 51310516.

The previous prime is 52425973. The next prime is 52426013. The reversal of 52426009 is 90062425.

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 52426009 - 2¹⁹ = 51901721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52466009) 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, 557677 + ... + 557770.

It is an arithmetic number, because the mean of its divisors is an integer number (13385376).

Almost surely, 2^52426009 is an apocalyptic number.

It is an amenable number.

52426009 is a deficient number, since it is larger than the sum of its proper divisors (1115495).

52426009 is a wasteful number, since it uses less digits than its factorization.

52426009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115494.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 52426009 is about 7240.5807087553. The cubic root of 52426009 is about 374.2676289887.

The spelling of 52426009 in words is "fifty-two million, four hundred twenty-six thousand, nine".