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55036401 = 3723113947
BaseRepresentation
bin1101000111110…
…0100111110001
310211120010202020
43101330213301
5103042131101
65243342053
71235541660
oct321744761
9124503666
1055036401
1129080732
1216521929
13b52c924
147448dd7
154c72136
hex347c9f1

55036401 has 16 divisors (see below), whose sum is σ = 87512064. Its totient is φ = 30081744.

The previous prime is 55036393. The next prime is 55036409. The reversal of 55036401 is 10463055.

It is an interprime number because it is at equal distance from previous prime (55036393) and next prime (55036409).

It is not a de Polignac number, because 55036401 - 23 = 55036393 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55036409) 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, 56491 + ... + 57456.

It is an arithmetic number, because the mean of its divisors is an integer number (5469504).

Almost surely, 255036401 is an apocalyptic number.

It is an amenable number.

55036401 is a deficient number, since it is larger than the sum of its proper divisors (32475663).

55036401 is a wasteful number, since it uses less digits than its factorization.

55036401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113980.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 55036401 is about 7418.6522360871. The cubic root of 55036401 is about 380.3791253150.

Adding to 55036401 its reverse (10463055), we get a palindrome (65499456).

The spelling of 55036401 in words is "fifty-five million, thirty-six thousand, four hundred one".

Divisors: 1 3 7 21 23 69 161 483 113947 341841 797629 2392887 2620781 7862343 18345467 55036401