54702409 has 4 divisors (see below), whose sum is σ = 54769860. Its totient is φ = 54634960.

The previous prime is 54702367. The next prime is 54702433. The reversal of 54702409 is 90420745.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14100025 + 40602384 = 3755^2 + 6372^2 .

It is a cyclic number.

It is not a de Polignac number, because 54702409 - 2¹¹ = 54700361 is a prime.

It is a super-4 number, since 4×54702409⁴ (a number of 32 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54702449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32494 + ... + 34135.

It is an arithmetic number, because the mean of its divisors is an integer number (13692465).

Almost surely, 2^54702409 is an apocalyptic number.

It is an amenable number.

54702409 is a deficient number, since it is larger than the sum of its proper divisors (67451).

54702409 is an equidigital number, since it uses as much as digits as its factorization.

54702409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67450.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 54702409 is about 7396.1076925637. The cubic root of 54702409 is about 379.6081116875.

The spelling of 54702409 in words is "fifty-four million, seven hundred two thousand, four hundred nine".