52402549 has 4 divisors (see below), whose sum is σ = 52450336. Its totient is φ = 52354764.

The previous prime is 52402543. The next prime is 52402607. The reversal of 52402549 is 94520425.

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 52402549 - 2³ = 52402541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52402549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52402541) 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, 22209 + ... + 24454.

It is an arithmetic number, because the mean of its divisors is an integer number (13112584).

Almost surely, 2^52402549 is an apocalyptic number.

It is an amenable number.

52402549 is a deficient number, since it is larger than the sum of its proper divisors (47787).

52402549 is a wasteful number, since it uses less digits than its factorization.

52402549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47786.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 52402549 is about 7238.9604916728. The cubic root of 52402549 is about 374.2117939254.

The spelling of 52402549 in words is "fifty-two million, four hundred two thousand, five hundred forty-nine".