54914991 has 4 divisors (see below), whose sum is σ = 73219992. Its totient is φ = 36609992.

The previous prime is 54914969. The next prime is 54915001. The reversal of 54914991 is 19941945.

It is a happy number.

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 54914991 - 2⁹ = 54914479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54914891) 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, 9152496 + ... + 9152501.

It is an arithmetic number, because the mean of its divisors is an integer number (18304998).

Almost surely, 2^54914991 is an apocalyptic number.

54914991 is a deficient number, since it is larger than the sum of its proper divisors (18305001).

54914991 is a wasteful number, since it uses less digits than its factorization.

54914991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18305000.

The product of its digits is 58320, while the sum is 42.

The square root of 54914991 is about 7410.4649651692. The cubic root of 54914991 is about 380.0992146292.

The spelling of 54914991 in words is "fifty-four million, nine hundred fourteen thousand, nine hundred ninety-one".