54090697 has 4 divisors (see below), whose sum is σ = 54516736. Its totient is φ = 53664660.

The previous prime is 54090683. The next prime is 54090709. The reversal of 54090697 is 79609045.

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 54090697 - 2¹⁵ = 54057929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54090607) 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, 212829 + ... + 213082.

It is an arithmetic number, because the mean of its divisors is an integer number (13629184).

Almost surely, 2^54090697 is an apocalyptic number.

It is an amenable number.

54090697 is a deficient number, since it is larger than the sum of its proper divisors (426039).

54090697 is a wasteful number, since it uses less digits than its factorization.

54090697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426038.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 54090697 is about 7354.6377884978. The cubic root of 54090697 is about 378.1878096787.

The spelling of 54090697 in words is "fifty-four million, ninety thousand, six hundred ninety-seven".