54981431 has 8 divisors (see below), whose sum is σ = 57560544. Its totient is φ = 52418080.

The previous prime is 54981401. The next prime is 54981439. The reversal of 54981431 is 13418945.

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 54981431 - 2¹⁰ = 54980407 is a prime.

It is a super-2 number, since 2×54981431² = 6045915509615522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54981391 and 54981400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54981439) 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, 3521 + ... + 11061.

It is an arithmetic number, because the mean of its divisors is an integer number (7195068).

Almost surely, 2^54981431 is an apocalyptic number.

54981431 is a deficient number, since it is larger than the sum of its proper divisors (2579113).

54981431 is a wasteful number, since it uses less digits than its factorization.

54981431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7881.

The product of its digits is 17280, while the sum is 35.

The square root of 54981431 is about 7414.9464596853. The cubic root of 54981431 is about 380.2524430622.

The spelling of 54981431 in words is "fifty-four million, nine hundred eighty-one thousand, four hundred thirty-one".