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54399551 = 3372479
BaseRepresentation
bin1100111110000…
…1001000111111
310210100210011012
43033201020333
5102411241201
65221545435
71230250163
oct317411077
9123323135
1054399551
1128786208
121627527b
13b368aab
147320ca3
154b985bb
hex33e123f

54399551 has 6 divisors (see below), whose sum is σ = 54675360. Its totient is φ = 54124896.

The previous prime is 54399547. The next prime is 54399557. The reversal of 54399551 is 15599345.

It is a happy number.

It is not a de Polignac number, because 54399551 - 22 = 54399547 is a prime.

It is a super-2 number, since 2×543995512 = 5918622298003202, 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 = 54399499 and 54399508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54399557) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 113330 + ... + 113808.

It is an arithmetic number, because the mean of its divisors is an integer number (9112560).

Almost surely, 254399551 is an apocalyptic number.

54399551 is a deficient number, since it is larger than the sum of its proper divisors (275809).

54399551 is an frugal number, since it uses more digits than its factorization.

54399551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153 (or 816 counting only the distinct ones).

The product of its digits is 121500, while the sum is 41.

The square root of 54399551 is about 7375.6051277166. The cubic root of 54399551 is about 378.9062524121.

The spelling of 54399551 in words is "fifty-four million, three hundred ninety-nine thousand, five hundred fifty-one".

Divisors: 1 337 479 113569 161423 54399551