52154479 has 4 divisors (see below), whose sum is σ = 56166376. Its totient is φ = 48142584.

The previous prime is 52154477. The next prime is 52154489. The reversal of 52154479 is 97445125.

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 52154479 - 2¹ = 52154477 is a prime.

It is a super-2 number, since 2×52154479² = 5440179359522882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52154471) 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, 2005929 + ... + 2005954.

It is an arithmetic number, because the mean of its divisors is an integer number (14041594).

Almost surely, 2^52154479 is an apocalyptic number.

52154479 is a deficient number, since it is larger than the sum of its proper divisors (4011897).

52154479 is a wasteful number, since it uses less digits than its factorization.

52154479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4011896.

The product of its digits is 50400, while the sum is 37.

The square root of 52154479 is about 7221.8057991059. The cubic root of 52154479 is about 373.6203621937.

The spelling of 52154479 in words is "fifty-two million, one hundred fifty-four thousand, four hundred seventy-nine".