54409397 has 4 divisors (see below), whose sum is σ = 62182176. Its totient is φ = 46636620.

The previous prime is 54409391. The next prime is 54409417. The reversal of 54409397 is 79390445.

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 a de Polignac number, because none of the positive numbers 2^k-54409397 is a prime.

It is a super-3 number, since 3×54409397³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54409391) 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, 3886379 + ... + 3886392.

It is an arithmetic number, because the mean of its divisors is an integer number (15545544).

Almost surely, 2^54409397 is an apocalyptic number.

It is an amenable number.

54409397 is a deficient number, since it is larger than the sum of its proper divisors (7772779).

54409397 is an equidigital number, since it uses as much as digits as its factorization.

54409397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7772778.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 54409397 is about 7376.2725681743. The cubic root of 54409397 is about 378.9291109703.

The spelling of 54409397 in words is "fifty-four million, four hundred nine thousand, three hundred ninety-seven".