252054407 has 4 divisors (see below), whose sum is σ = 274968456. Its totient is φ = 229140360.

The previous prime is 252054391. The next prime is 252054409. The reversal of 252054407 is 704450252.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 252054407 - 2⁴ = 252054391 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 252054407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252054409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11457008 + ... + 11457029.

It is an arithmetic number, because the mean of its divisors is an integer number (68742114).

Almost surely, 2^252054407 is an apocalyptic number.

252054407 is a deficient number, since it is larger than the sum of its proper divisors (22914049).

252054407 is a wasteful number, since it uses less digits than its factorization.

252054407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22914048.

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 252054407 is about 15876.2214333260. The cubic root of 252054407 is about 631.6814133963.

The spelling of 252054407 in words is "two hundred fifty-two million, fifty-four thousand, four hundred seven".