54959919 has 16 divisors (see below), whose sum is σ = 85459200. Its totient is φ = 31405080.

The previous prime is 54959897. The next prime is 54959921. The reversal of 54959919 is 91995945.

It is a happy number.

It is not a de Polignac number, because 54959919 - 2²⁰ = 53911343 is a prime.

It is a super-2 number, since 2×54959919² = 6041185392973122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54959969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25677 + ... + 27734.

It is an arithmetic number, because the mean of its divisors is an integer number (5341200).

Almost surely, 2^54959919 is an apocalyptic number.

54959919 is a deficient number, since it is larger than the sum of its proper divisors (30499281).

54959919 is an equidigital number, since it uses as much as digits as its factorization.

54959919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53435 (or 53421 counting only the distinct ones).

The product of its digits is 656100, while the sum is 51.

The square root of 54959919 is about 7413.4957341324. The cubic root of 54959919 is about 380.2028441494.

The spelling of 54959919 in words is "fifty-four million, nine hundred fifty-nine thousand, nine hundred nineteen".