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55425053 = 163340031
BaseRepresentation
bin1101001101101…
…1100000011101
310212021212212202
43103123200131
5103142100203
65255541245
71242051035
oct323334035
9125255782
1055425053
1129316732
121668a825
13b6377b8
14750a8c5
154cec388
hex34db81d

55425053 has 4 divisors (see below), whose sum is σ = 55765248. Its totient is φ = 55084860.

The previous prime is 55425011. The next prime is 55425077. The reversal of 55425053 is 35052455.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35052455 = 57010491.

It is a cyclic number.

It is not a de Polignac number, because 55425053 - 212 = 55420957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55425353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169853 + ... + 170178.

It is an arithmetic number, because the mean of its divisors is an integer number (13941312).

Almost surely, 255425053 is an apocalyptic number.

It is an amenable number.

55425053 is a deficient number, since it is larger than the sum of its proper divisors (340195).

55425053 is a wasteful number, since it uses less digits than its factorization.

55425053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340194.

The product of its (nonzero) digits is 15000, while the sum is 29.

The square root of 55425053 is about 7444.8004002794. The cubic root of 55425053 is about 381.2724036642.

The spelling of 55425053 in words is "fifty-five million, four hundred twenty-five thousand, fifty-three".

Divisors: 1 163 340031 55425053