54992491 has 8 divisors (see below), whose sum is σ = 56300544. Its totient is φ = 53690280.

The previous prime is 54992489. The next prime is 54992503. The reversal of 54992491 is 19429945.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54992491 - 2¹ = 54992489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54992401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21886 + ... + 24268.

It is an arithmetic number, because the mean of its divisors is an integer number (7037568).

Almost surely, 2^54992491 is an apocalyptic number.

54992491 is a deficient number, since it is larger than the sum of its proper divisors (1308053).

54992491 is a wasteful number, since it uses less digits than its factorization.

54992491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2921.

The product of its digits is 116640, while the sum is 43.

The square root of 54992491 is about 7415.6922131383. The cubic root of 54992491 is about 380.2779383975.

The spelling of 54992491 in words is "fifty-four million, nine hundred ninety-two thousand, four hundred ninety-one".