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55523001 = 3102118127
BaseRepresentation
bin1101001111001…
…1011010111001
310212110212020110
43103303122321
5103203214001
65302014533
71242636432
oct323633271
9125425213
1055523001
1129383286
1216717449
13b670261
147534489
154d1b3d6
hex34f36b9

55523001 has 8 divisors (see below), whose sum is σ = 74107264. Its totient is φ = 36977040.

The previous prime is 55522981. The next prime is 55523009. The reversal of 55523001 is 10032555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55523001 - 26 = 55522937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55523009) 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, 6001 + ... + 12126.

It is an arithmetic number, because the mean of its divisors is an integer number (9263408).

Almost surely, 255523001 is an apocalyptic number.

It is an amenable number.

55523001 is a deficient number, since it is larger than the sum of its proper divisors (18584263).

55523001 is a wasteful number, since it uses less digits than its factorization.

55523001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19151.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 55523001 is about 7451.3757790089. The cubic root of 55523001 is about 381.4968682949.

Adding to 55523001 its reverse (10032555), we get a palindrome (65555556).

The spelling of 55523001 in words is "fifty-five million, five hundred twenty-three thousand, one".

Divisors: 1 3 1021 3063 18127 54381 18507667 55523001